The document provides information about elements and their symbols, atomic structure, and subatomic particles. It lists the symbols for common elements in Column A and their names in Column B. It also explains that elements are the simplest form of matter made up of 118 types of substances that cannot be broken down further. The number of protons, electrons, and neutrons in an atom can be calculated using the atomic number and mass number.

1. Give the Symbol for each element in
Column A and the Name of the given
Symbols in Column B
A B
1. Chlorine-_____ 6. Na-____
2. Lead- _____ 7. Fe-____
3. Helium-_____ 8. I -_____
4. Calcium-_____ 9. Au-_____
5. Potassium-_____ 10. Ag- ____

2. 11-15.) What element do the
pictures show?
16-20.) Enumerate at least 5
Groups/Families of the Periodic
Table of Elements.

4. Element is the simplest form of
matter with 118 types of
substances that cannot be
broken down into simpler
substances.

11. To calculate the numbers
of subatomic particles in an atom,
use its atomic number and mass
number:
•number of protons = atomic number
•number of electrons = atomic
number
•number of neutrons = mass number

12. Total number of
Electrons
=
Protons in the nucleus

13. ELEMENTS Symb
ol
ATOMIC
NUMBE
R
ATOMI
C
MASS
PROTO
N
ELECTR
ON
NEUTR
ON
PHOSPHO
RUS
NITROGEN
ALUMINUM
SULFUR
NICKEL