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A sodium atom has one electron in its outermost shell. If it loses the electron from its M shell then its L shell now becomes the outermost shell and that has a stable octet. The nucleus of this atom still has 11 protons but the number of electrons has become 10, so there is a net positive charge giving us a sodium cation Na+.On the other hand chlorine has seven electrons in its outermost shell.

1. How much electrons do sodium have in its outermost shell ?

a. 3

b. 2

c. 1

d. 4

2. How much electrons do chlorine have in its outermost shell?

a. 9

b. 7

3. When sodium losses electron from M shell , which shell it goes next ?

a. L

b. P

4. Chlorine has _____ electrons in its outermost shell.

a. 5

b. 7

5. Which type of bond is formed between Chlorine and Sodium?

a. Ionic

b. Covalent

c. None of These

1 Answer

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Best answer

1. c. 1

2. b. 7

3. a. L

4. b. 7

5. a. Ionic

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