Question

Identify The diagram and Answer The following Questions:

1. Is it metal or non metal.
2. Write the number of valence electrons. 3. Write the electronic configuration of elements.
4. What is the formula of compound with sodium.
5. Identify the element.​

Answer 1

Answer:

1 non metal

2 valence -2

3 electronic configuration 2,6

4 don't know

5 oxygen

Answer 2

Answer: 1. Non metal

2. 6 e⁻

3. 2,6

4. Na₂O

5. Oxygen

Explanation: 1. Oxygen is a gas

2. Valence electrons are the no. of e⁻ in last shell i.e. 6 in this case

3. 2, 6 as it's atomic number is 8

4. In sodium oxide, there are two sodium atoms for every oxygen atom, so its formula is shown as Na₂O.

5. O is the symbol for the element Oxygen.