Question

State the position of the following elements in the long form periodic table
1. Element with atomic number 19
2 The element sodium
3. The element argon
4. The element chlorine
5. The element with atomic number 16​

Answer 1

Answer:

1) Potassium (K) with atomic no. 19 is group 1 and 4th period element.

2) Sodium (Na) with atomic no. 11 is a first group and 3rd period element.

3) Argon(Ar) with atomic no. 18 is a group 18 and 3rd period element.

4) Chlorine(Cl) with atomic no. 17 is grop 17 (halogen) and 3rd period element.

5) Sulphur (S) with atomic no. 16 is group 16 (oxygen family) and 2nd period element.