Question

Use the periodic table to determine the electron configuration for zinc (Zn) and technetium (Tc) in noble-gas notation.

Answer 1

Answer:{Ar}4s23d10

Step-by-step explanation:

Answer 2

Zinc is a d block element with atomic number 30 has 30 electrons. The nearest noble gas is argon with atomic number of 18 and has 18 electrons.

`Zn:[Ar]3d^(10)4s^2`

Technetium is a d block element with atomic number 43 has 43 electrons. The nearest noble gas is krypton with atomic number of 36 and has 36 electrons.

`Tc:[Kr]4d^55s^2`