science

2. How many electrons are there
in the element Calcium?
20

3. How many neutrons are there
in the element Calcium?
20

4. Write the electron configuration
of chlorine.
1s 2s 2p 3s 3p
2 2 6 2 5

5. Write the electron configuration
of chlorine using core method.
[Ne] 3s 3p
2 5

6. How many valence electrons are there
in Oxygen?
4

7. What is the highest energy level in the
electron configuration of Oxygen?
2

8. What is the principal quantum number
of the last configuration of the element
Oxygen?
2

9. What is the magnetic quantum number
of the last configuration of the element
Oxygen?
-1

10. What is the spin quantum number of
the last configuration of the element
Oxygen?
1

11. What is the spin quantum number of
the last configuration of the element
Oxygen?
-1/2

12. What is the azimuthal quantum
number of the last configuration of the
element Oxygen?
1

13. What is the atomic number of
Bromine?
35

14. How many valence electrons are there
in Sodium?
1

15. Write the electron configuration of
Sodium
1s 2s 2p 3s
2 2 6 1

16. Write the electron configuration of
Sodium using core method
[Ne] 3s
1

17. Draw the orbital diagram of the last
configuration of Sodium?

18. The magnetic quantum number of last
configuration of Sodium
0

19. The principal quantum number of last
configuration of Sodium
3

20. The spin quantum number of last
configuration of Sodium
+1/2

21. The azimuthal quantum number of last
configuration of Sodium
0