Which of the following is/are TRUE about the element?

Question

An element has an electron configuration of [Ar]4s²3d¹⁰4p⁵. Which of the following is/are TRUE about the element? Select ALL statements that are true about the element.



Group of answer choices:

-The element is a halogen.

-The element is Se.

-The element has one fewer electron than the following noble gas.

-When the element reacts with a metal, the elements tends to gain one electron to form an anion with a 1− charge.

Answer 1

[Ar]4s²3d¹⁰4p⁵ represents bromine (Br)

The choices that are true are:

The element is a halogen

The element has one fewer electrons than the following noble gas

When the element reacts with a metal, the element tends to gain one electron to form an anion with a 1− charge