Question

1. Consider the following atom with its electrons configured for you to answer the associated questions.

1. What is its valance electron? ____1_________
2. Does this atom transfer or receive electrons to complete its outer most shell according to octet rule? ____________
3. How many electrons it can transfer? __________________
4. How many bonds can this atom make at a time? ______________
5. What ion will this atom become upon a reaction?            a) Positive    b) Negative

Answer 1

As you mentioned the valence electron is 1 so it means that the atom has 1 electron in its valence shell. It is sodium atom which have electronic configuration 2, 8 ,1

Ans a) valence elctron is defined as no of electron present in outermost shell of an atom . Sodium atom has 1 in its outermost shell so the valence electron is 1

Ans b) This atom has 1 extra electron so in order to complete its octet it would easily lose one electron. So it will transfer 1 electron to complete its octet.

Ans c) As it has 1 extra electron so it will transfer 1 electron

Ans d) sodium atom will form ionic bond with chloride atom. It is the formation of bond between opositely charged ions.

Ans e) As this atom will transfer the electron so it will get a positive charge thus it will become the positive ion called cation.