The document discusses the structure of atoms and isotopes. It begins by defining matter and the particle theory of matter. It then explains that atoms are made up of protons, neutrons and electrons. The atomic structure of various elements is discussed through their electron configurations. Isotopes are then introduced as atoms of the same element that have the same number of protons but different numbers of neutrons. Examples of isotopes including hydrogen and oxygen isotopes are provided.
This presentation is specially made for the students of grades 11 and 12 of High School. This is the presentation of chapter Atomic Structure with proper diagrams, figures, facts, mnemonics, and some repeated past questions. Here you will get a chance to know about Atomic theory, Daltons Law, particles and so on.
The attractive force which holds various constituents (atom, ions, etc.) together and stabilizes them by the overall loss of energy is known as chemical bonding. Therefore, it can be understood that chemical compounds are reliant on the strength of the chemical bonds between its constituents; The stronger the bonding between the constituents, the more stable the resulting compound would be.
This presentation is specially made for the students of grades 11 and 12 of High School. This is the presentation of chapter Atomic Structure with proper diagrams, figures, facts, mnemonics, and some repeated past questions. Here you will get a chance to know about Atomic theory, Daltons Law, particles and so on.
The attractive force which holds various constituents (atom, ions, etc.) together and stabilizes them by the overall loss of energy is known as chemical bonding. Therefore, it can be understood that chemical compounds are reliant on the strength of the chemical bonds between its constituents; The stronger the bonding between the constituents, the more stable the resulting compound would be.
The timeline below shows the theories that scientist had about the structure of an atom. The timeline ranges from he early 1800's to the early 20th century.
This is a biosphere powerpoint I've created for a middle school level science class. It's full of fun animated cartoons and facts on both aquatic and terrestrial biomes.
This presentation curates resources, podcasts and screenshots focusing on our changing climate. What are your go-to resources? What inspires? Favorite buzzwords? We welcome your interaction -- comments, questions, suggestions, shares, clips, favorites, likes and hearts.
- Ron Mader (Las Vegas, 2016)
Some history: This presentation was first created in 2008 to review global initiatives in the realm of climate change. An early version debuted at the Environmental Tourism Forum in Monterrey, Mexico.
More info on the Planeta Wiki
http://planeta.wikispaces.com/climate
http://planeta.wikispaces.com/climatenotes
http://planeta.wikispaces.com/climatecop22
http://planeta.wikispaces.com/climatecop21
November 2015 video
https://www.youtube.com/watch?v=lEbgKy57xIU
Hello everyone, I am Dr. Ujwalkumar Trivedi, Head of Biotechnology Department at Marwadi University Rajkot. I teach Molecular Biology to the students of M.Sc. Microbiology and Biotechnology.
The current presentation is about the historical perspectives of the discovery of atoms and subatomic particles. The later part of the presentation describes various atomic models and the properties of subatomic particles with a description of commonly used terms like molecules, ions and compounds.
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
Andreas Schleicher presents at the OECD webinar ‘Digital devices in schools: detrimental distraction or secret to success?’ on 27 May 2024. The presentation was based on findings from PISA 2022 results and the webinar helped launch the PISA in Focus ‘Managing screen time: How to protect and equip students against distraction’ https://www.oecd-ilibrary.org/education/managing-screen-time_7c225af4-en and the OECD Education Policy Perspective ‘Students, digital devices and success’ can be found here - https://oe.cd/il/5yV
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
For more information, visit-www.vavaclasses.com
7. Let’s see the particles in bromine liquid Particle theory
8. The smallest particle of an element and not breakable anymore. 1. A t o m s Examples: Atom of hydrogen atom of magnesium atom of oxygen atom of chlorine H Mg Cl O Particle theory
9. A group of two @ more atoms, which might consist of: one type of element (Element) @ different types of element (Compound) 2. M o l e c u l e s
10. Examples of element molecules: Molecule of hydrogen gas Molecule of oxygen gas Molecule of chlorine gas O O Cl Cl H H
11. Examples of compound molecules: Molecule of water , H 2 O Molecule of ammonia , NH 3 Molecule of ethanol , C 2 H 5 OH Particle theory H H O H H H N O C C H H H H H H
12. Ions are atoms which have charge Positively-charged ion / cation (loss e - ) Negatively charged ion / anion (gain e-) 3. I o n s + -
13. Examples of ions: Hydrogen atom Hydrogen ion Magnesium atom Magnesium ion Oxygen atom Ox ide ion Chlorine atom Chlorine ion Particle theory Symbol of element H + H Lose electron Mg 2+ Lose electron Mg O 2- Gain electron O Cl - Gain electron Cl
39. Heating curve of naphthalene Q1-Q4 Q5-Q7 A C B D Temperature / ˚C Time / minute 79˚C
40.
41. What is the Melting point? A: 79˚C What is the physical state at B-C? A: solid and liquid Where is point that Melting process started? A: B Where is point that Melting process ended? A: C graph apparatus
42. Why the curve of heating has no change at B-C? A: because the heat energy absorbed by naphthalene molecules to overcome the forces of attraction to becomes liquid Why solid naphthalene heated in water ? A: to ensure a uniform heating If the melting point of Substance X is 123˚C, can we still use water as medium? Why? A: No. Because its melting point is higher than the boiling point of water. We can use oil bath to replace water. graph apparatus Physical changes
43. Freezing point – the temperature which a solution becomes solid Determine the Freezing Point of Naphthalene
44. Cooling curve of naphthalene Q1-Q4 Q5-Q7 79˚C E F Temperature / ˚C G H Time / minute
45. Is the freezing point same with the Melting point? A: Yes, both are 79˚C What is the physical state change in this experiment? A: Liquid naphthalene changes to solid Where is the point that freezing process started? A: F Where is the point that freezing process ended? A: G
46. Why the curve of heating has no change at F-G? A: because the heat energy released during formation of bonds is equal to the heat released to surroundings Why liquid naphthalene in the boiling tube is cooled inside a conical flask? A: to ensure a uniform cooling
56. Subatomic Particle In An Atom PROPERTIES PROTON NEUTRON ELECTRON Symbol Electric Charge Relative Mass Location
57. Subatomic Particle In An Atom PROPERTIES PROTON NEUTRON ELECTRON Symbol p Electric Charge Relative Mass Location
58. Subatomic Particle In An Atom PROPERTIES PROTON NEUTRON ELECTRON Symbol p n Electric Charge Relative Mass Location
59. Subatomic Particle In An Atom PROPERTIES PROTON NEUTRON ELECTRON Symbol p n e - Electric Charge Relative Mass Location
60. Subatomic Particle In An Atom PROPERTIES PROTON NEUTRON ELECTRON Symbol p n e - Electric Charge +1 Relative Mass Location
61. Subatomic Particle In An Atom PROPERTIES PROTON NEUTRON ELECTRON Symbol p n e - Electric Charge +1 0 Relative Mass Location
62. Subatomic Particle In An Atom PROPERTIES PROTON NEUTRON ELECTRON Symbol p n e - Electric Charge +1 0 -1 Relative Mass Location
63. Subatomic Particle In An Atom PROPERTIES PROTON NEUTRON ELECTRON Symbol p n e - Electric Charge +1 0 -1 Relative Mass 1 Location
64. Subatomic Particle In An Atom PROPERTIES PROTON NEUTRON ELECTRON Symbol p n e - Electric Charge +1 0 -1 Relative Mass 1 1 Location
65. Subatomic Particle In An Atom PROPERTIES PROTON NEUTRON ELECTRON Symbol p n e - Electric Charge +1 0 -1 Relative Mass 1 1 1/1240 ≈ 0 Location
66. Subatomic Particle In An Atom PROPERTIES PROTON NEUTRON ELECTRON Symbol p n e - Electric Charge +1 0 -1 Relative Mass 1 1 1/1240 ≈ 0 Location in the nucleus atom
67. Subatomic Particle In An Atom PROPERTIES PROTON NEUTRON ELECTRON Symbol p n e - Electric Charge +1 0 -1 Relative Mass 1 1 1/1240 ≈ 0 Location in the nucleus atom in the nucleus atom
68. Subatomic Particle In An Atom PROPERTIES PROTON NEUTRON ELECTRON Symbol p n e - Electric Charge +1 0 -1 Relative Mass 1 1 1/1240 ≈ 0 Location in the nucleus atom in the nucleus atom Electron shells which around the nucleus atom
86. Repeat them !! Proton number number of protons in the nucleus of atom Nucleon number total number of protons and nucleons in the nucleus of atom Valence electron the electrons in the outermost shell Electron configuration – arrangement of electron
88. Q1 Fill in the blanks Elements Proton Number Nucleon Number Number of Neutrons A 3 7 B 6 12 C 19 10 D 16 16 E 17 18 F 40 20
89. Q1 Answers Elements Proton Number Nucleon Number Number of Neutrons A 3 7 4 B 6 12 6 C 9 19 10 D 16 32 16 E 17 35 18 F 20 40 20
90. Q2 Fill in the blanks Elements Number of Neutron Nucleon Number Number of electrons Electron Configuration A 5 9 B 8 2.6 C 19 2.7 D 14 2.8.3 E 32 16 F 20 40
91. Q2 Answers Elements Number of Neutron Nucleon Number Number of electrons Electron Configuration A 5 9 4 2.2 B 8 16 8 2.6 C 10 19 9 2.7 D 14 27 13 2.8.3 E 16 32 16 2.8.6 F 20 40 20 2.8.8.2
96. Properties of isotopes Oxygen Isotopes No of proton No of neutron No of e - e - configuration Valence e - 16 8 O 18 8 O 17 8 O
97. Properties of isotopes Oxygen Isotopes No of proton 8 No of neutron No of e - e - configuration Valence e - 16 8 O 18 8 O 17 8 O
98. Properties of isotopes Oxygen Isotopes No of proton 8 8 No of neutron No of e - e - configuration Valence e - 16 8 O 18 8 O 17 8 O
99. Properties of isotopes Oxygen Isotopes No of proton 8 8 8 No of neutron No of e - e - configuration Valence e - 16 8 O 18 8 O 17 8 O
100. Properties of isotopes Oxygen Isotopes No of proton 16 16 16 No of neutron 16 No of e - e - configuration Valence e - 16 8 O 18 8 O 17 8 O
101. Properties of isotopes Oxygen Isotopes No of proton 16 16 16 No of neutron 16 17 No of e - e - configuration Valence e - 16 8 O 18 8 O 17 8 O
102. Properties of isotopes Oxygen Isotopes No of proton 16 16 16 No of neutron 16 17 18 No of e - e - configuration Valence e - 16 8 O 18 8 O 17 8 O
103. Properties of isotopes Oxygen Isotopes No of proton 16 16 16 No of neutron 16 17 18 No of e - 16 e - configuration Valence e - 16 8 O 18 8 O 17 8 O
104. Properties of isotopes Oxygen Isotopes No of proton 16 16 16 No of neutron 16 17 18 No of e - 16 16 e - configuration Valence e - 16 8 O 18 8 O 17 8 O
105. Properties of isotopes Oxygen Isotopes No of proton 16 16 16 No of neutron 16 17 18 No of e - 16 16 16 e - configuration Valence e - 16 8 O 18 8 O 17 8 O
106. Properties of isotopes Oxygen Isotopes No of proton 16 16 16 No of neutron 16 17 18 No of e - 16 16 16 e - configuration 2.8.6 Valence e - 16 8 O 18 8 O 17 8 O
107. Properties of isotopes Oxygen Isotopes No of proton 16 16 16 No of neutron 16 17 18 No of e - 16 16 16 e - configuration 2.8.6 2.8.6 Valence e - 16 8 O 18 8 O 17 8 O
108. Properties of isotopes Oxygen Isotopes No of proton 16 16 16 No of neutron 16 17 18 No of e - 16 16 16 e - configuration 2.8.6 2.8.6 2.8.6 Valence e - 16 8 O 18 8 O 17 8 O
109. Properties of isotopes Oxygen Isotopes No of proton 16 16 16 No of neutron 16 17 18 No of e - 16 16 16 e - configuration 2.8.6 2.8.6 2.8.6 Valence e - 6 16 8 O 18 8 O 17 8 O
110. Properties of isotopes Oxygen Isotopes No of proton 16 16 16 No of neutron 16 17 18 No of e - 16 16 16 e - configuration 2.8.6 2.8.6 2.8.6 Valence e - 6 6 16 8 O 18 8 O 17 8 O
111. Properties of isotopes Oxygen Isotopes No of proton 16 16 16 No of neutron 16 17 18 No of e - 16 16 16 e - configuration 2.8.6 2.8.6 2.8.6 Valence e - 6 6 6 16 8 O 18 8 O 17 8 O
114. Q3. Answer the structure questions Elements Proton Number Nucleon Number P 3 7 Q 9 19 R 16 32 S 15 31 T 16 33 U 18 40
115. a ) What means proton number? A: The numbers of proton in the nucleus of an atom b) What means nucleon number? A: The numbers of proton & neutron in the nucleus of an atom c) Write the electron arrangement for element Q. A: 2.7 d) How many valence electrons that element Q has? A: 7 e) How many electron shells that element Q has? A: two
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