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Atoms have a negative charge when they gain electrons during chemical changes. Atoms are a basic unit of matter, and everything is made of atoms.
Atoms have a negative charge when they gain electrons during chemical changes. Atoms are a basic unit of matter, and everything is made of atoms.
Atoms of different elements unite during chemical changes to produce at least one chemical compound.
Ionic bonds form during chemical changes when atoms pull electrons away from other atoms. The atoms that lose electrons form ions that have fewer electrons than protons. So, an ion would be produced by an atom or a group of atoms that gained or lost one or more of its electrons.
The atoms depend entirely on the chemical reaction in question. If they gain an electron, their charge will be reduced by 1, so +1 to 0, 0 to -1, etc.
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Chemical changes involve breaking and forming of bonds between atoms. Chemical energy is required to break bonds. The formation of new bonds releases energy.
Chemical bonds are formed by the sharing or donating of electrons. The electrons that atoms use to make chemical bonds are the outermost electrons, also known as valence electrons.
The electrons farthest from the nucleus of the atom
Bonds are broken by rearrangement of electrons, and then new bonds are made, again by rearrangement (sharing, donating, etc) of electrons.
Some or all of its valence electrons.
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