Chemistry 2.1 to 2.4

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Created by: Indyfair123
Created on: 16-10-16 13:36

What does the atomic number of an atom stand for?

Number of protons

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What does the mass number of an atom stand for?

Total number of protons and neutrons

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How do you find the number of neutrons of an atom?

You subtract the atomic number from the mass number

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What is a compound?

When two or more elements are chemically bonded

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What is meant by the term 'Isotope'?

Isotopes are different atomic forms of the same element, which have the same number of protons but a different number of neutrons

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What is meant by Ionic Bonding?

Ionic bonding is the transferring of electrons between elements to create ions

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How does an ion have a negative/positive charge?

For an ion to have a negative charge it will have had to of gained one or more electrons from another atom. and for an ion to have a positive charge it will have had to lose one or more electrons to another atom.

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How do we know whether the atom loses or gains an electron in an ionic bond?

If the atom belongs to either group 6 or group 7, with nearly full outer shells, they will gain electrons to have a full outer shell. However if they belong to either group 1 or group 2 they will lose electrons to have a full outer shell.

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