Picture 1.8 part atoms shed electrons and become hopeful ions. Others gain electrons and also become an adverse ions.

You are watching: To become a negative ion an atom must

For example:A lithium atom has actually 3 protons and also 3 electrons. It have the right to lose among its electrons, making it an ion. It now has an ext positive protons than electrons therefore it has actually an as whole positive charge. Thus it is a positive ion.

A fluorine atom will often tend to gain, fairly than lose, one electron. By obtaining a negative electron, it has actually an overall an adverse charge. That has become a negative ion.

BondingThe hopeful lithium ion and the negative fluoride ion will currently be attractive to every other. They can join together, or bond, to kind lithium fluoride.

Note: chemists sometimes attract the electrons about atoms in shells (as in snapshot 3.3). This help to describe why some atoms shed electrons and others choose them up. This doesn\"t mean that the electrons are really going about in circles through those radii - the is just a method of picturing it.

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Question 4Look in ~ the numbers of corpuscle in the atoms below. In every case, decision what the charge will be. Select your answer from the menu.elementsprotonselectronssodium1111please choose-2-10+1+2sodium1110please choose-2-10+1+2oxygen89please choose-2-10+1+2oxygen87please choose-2-10+1+2iron2624please choose-10+1+2+3iron2623please choose-10+1+2+3hydrogen11please choose-2-10+1+2hydrogen10please choose-2-10+1+2\"navigation