Multiple Choice
The element with the ground state electron configuration of 1s² 2s² 2p⁶ 3s² 3p⁵ is
A) Ar.
B) Cl.
C) S.
D) Br.
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q134: The sum of protons and neutrons in
Q135: What is the maximum number of electrons
Q136: Calcium has _ valence electron(s).
Q137: Electrolytes are important substances in the chemistry
Q138: How many nucleons are in this isotope
Q140: Potassium has _ valence electron(s).
Q141: Isotopes of an element have the same
Q142: The proton has<br>A)the same mass and charge
Q143: Which orbital will have the highest energy?<br>A)3d<br>B)3p<br>C)4s<br>D)2p
Q144: The model for the atom which has