INP 900 Lecture 2: INP 900 Module 2 Why do Non Profit Organizations Exist

a) (ns)1, b) (ns)1(np)1 c) (np)1(n+1p)1 and d) (np)2

1. Which of the following electron configurations could represent the valence of a metalloid?

a) ns^2 b) ns^2 (n-1) d^4 c) ns^2 np^2 d) ns^2 np^6 e) ns^2 np^5

2. Which of the following electron configurations could represent the valnce of an alkaline earth metal?

a) ns^2 b) ns^2 (n-1) d^4 c) ns^2 np^2 d) ns^2 np^6 e) ns^2 np^5