What Best Describes The Bromide Ion That Forms

ium atom question !!!? 3

An ■■■■■ atom (atom number 19) and a bromine atom (atom number 35) can form a chemical bond by transferring electrons. The formed lim ion consists of 18 electrons.

What is the best explanation for the formation of bromide ions?

= This is a negative ion in which one valence electron is less than the neutral bromine atom.

= It is a positive ion with one less electron than the neutral bromine atom.

= This is a negative ion that has one more valence electron than the neutral bromine atom.

= It is a positive ion that has one more valence electron than the neutral bromine atom.

Correct Answer: This is a negative ion that has more valence electrons than a neutral bromine atom.

You can think of it in terms of electron protection, if it helps you understand. When an ionic bond is formed, one (sometimes several) electrons move from one atom to another. If the atom of ■■■■■ has 19 electrons (according to the atomic number) and only 18, then it is a loss and an electron. For an ion atom to lose an electron, that electron must go somewhere. The place where it ends is in the ■■■■ valence of the bromine atom. This means that bromine goes from 35 to 36 electrons, which gives it a charge of 1.

Think of it in terms of charge - electrons are negative, so losing them makes them positive. K + 1. And what makes Bromine the most negative is Br 1. Now, if you add charges to an ionic compound, the total charge should be (normally) neutral. If KBr is formed, then 1 + 1 = 0, our charge is correct!

Let me know in the comments if I can do more to help you understand this concept.

What Best Describes The Bromide Ion That Forms

So K loses the electron and there is only one in Br, if there is only one electron in a neutral Br atom (negatively charged electron) it becomes an ion, choose the answer that explains the result.