Question

Use the periodic table to answer the questions: Which is the correct electron configuration for sodium (Na)?

Answer 1

Answer: The correct answer is $1s^22s^22p^63s^1$

Explanation:

Electronic configuration is defined as the configuration in which total number of electrons are represented which are present in an element.

Number of electrons are determined by the atomic number of that element.

Atomic number of Sodium = 11

Electronic configuration of sodium element (Na) : $1s^22s^22p^63s^1$

Hence, the correct answer is $1s^22s^22p^63s^1$

Answer 2

I am pretty sure the answer is 1s22s22p63s1