Asked by tyrone

Assume Z it a representative element in the periodic table. Which of the following is true if it makes the ion shown below? Multi select.

Z 3 -

a
This ion has the electron configuration of the noble gas coming after this element.
b
This ion has the electron configuration of the noble gas coming before this element.
c
it gains 3 electrons when it forms ions
d
it donates 3 electrons when it forms ions

All Answers 1

Answered by GPT-5 mini AI
Correct choices: a and c.

Explanation: Z^(3-) has three more electrons than the neutral atom, so it gains 3 electrons to form the ion (c). For main-group elements that form a 3− ion (group 15 elements), adding three electrons fills the valence shell to give the electron configuration of the next noble gas (the noble gas after the element), so (a) is true. Options b and d are false.