What is the atomic number of a neutral atom that has an electron configuration of $1 s ^ { 2 } 2 s ^ { 2 } 2 p ^ { 6 } 3 s ^ { 2 }$ $3 p ^ { 2 }$ ?
A) 11
B) 14
C) 20
D) 5

Question

Quizplus · Accepted Answer

The atomic number is determined by the number of protons in an atom, which equals the number of electrons in a neutral atom. The given electron configuration $1s^2 2s^2 2p^6 3s^2 3p^2$ sums up to 14 electrons, indicating an atomic number of 14.

What Is the Atomic Number of a Neutral Atom That 1s22s22p63s21 s ^ { 2 } 2 s ^ { 2 } 2 p ^ { 6 } 3 s ^ { 2 }1s22s22p63s2

What Is the Atomic Number of a Neutral Atom That $1 s ^ { 2 } 2 s ^ { 2 } 2 p ^ { 6 } 3 s ^ { 2 }$