4nbsphow many of the following electron configurations for

Question

1. Which of the following has the highest ionization energy?

A. K

B. C

C. O

D. N

E. Ca

 

2. Which of the following has the smallest atomic radius?

A. N

B. Br

C. F

D. S

E. Cl

 

3. Which of the following ions has the same electron configuration as an argon atom?

A. Ca+

B. K+

C. Br-

D. p3+

E. S3-

 

4. How many of the following electron configurations for the species in their ground state are correct?

I. Ca: 1s²2s²2p⁶3s²3p⁶4s²
II. Mg: 1s²2s²2p⁶3s¹
III. V: [Ar] 3s²3d³
IV. As: [Ar] 4s²3d¹⁰4p³
V. P: 1s²2s²2p⁶3p⁵