Question

question 9
1s²2s²2p⁶3s²3p⁶4s²3d⁶4p²
select state
number of electrons= select
element= select

Explanation:

Step1: Calculate number of electrons

Add the exponents. $2 + 2+6 + 2+6 + 2+6 + 2=30$

Step2: Identify the element

The element with 30 electrons (in neutral state) is Zinc (Zn).

Step3: Determine the state

Since all sub - shells are filled as per the electron - filling rules, it is in the ground state.

Answer:

state: Ground state
number of electrons: 30
element: Zinc (Zn)