Question

1) An element ita clactronne configuration
2.8.8.2. Answer the following questions
1) What is the atomic number of this
clemcnt?
i) What is the group of the element
110) What inthe valency of this clement?
iv) To which pericu deses this element
belongs
vj. With which of the following elements
would this element resembley
⁷N, 18Ar. 4Be, 17cl​

Answer 1

Answer:

1)20

i)2 nd group

110) 2

iv) 4rd

vj)Be

Answer 2

Answer:

1.atomic no.20

2.group 2

3.valency +2

4.period 4

5. 4Be