Question

the atomic number of an element whose outermost electrons are represented by 3d^6 will be 36. a true b false

Explanation:

Step1: Recall electron - filling order

Electrons fill orbitals in the order 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, etc. The 1s orbital can hold 2 electrons, 2s can hold 2, 2p can hold 6, 3s can hold 2, 3p can hold 6, 4s can hold 2, and 3d can hold 10.

Step2: Calculate number of electrons

For an element with outermost electrons 3d⁶, the electron - configuration is 1s²2s²2p⁶3s²3p⁶4s²3d⁶. Summing up the electrons: 2 + 2+6 + 2+6 + 2+6=24.

Answer:

b. FALSE