Adittional Chemistry

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what are alkali metals?
Elements found in group 1 in the periodic table, these contain 1 electron on the outer-most shell.
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what are halogens?
non-metals in group 7 of the periodic table, they're known as "salt-formers" and exist as diatomic molecules.
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what are atoms?
The smallest particles of a chemical element that can exist.
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what are protons?
positively charged particles in the nucleus of an atom.
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what are electrons?
negatively charged particles which orbit the nucleus of an atom.
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what are neutrons?
neutrons are uncharged particles which are found in the nucleus of almost every atom.
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What is the relative mass of a proton, neutron and electron?
Protons and Neutrons have a mass of 1 and the mass of an electron is negligible.
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what are the charges of a proton, neutron and electron?
Protons have a charge of 1, neutrons have no charge and electrons have a negative charge
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What is the Atomic number and Mass number of an atom?
The atomic number gives the amount of protons and neutrons in the atom. The mass number gives the total amount of protons and neutrons in the atom.
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Other cards in this set

Card 2

Front

what are halogens?

Back

non-metals in group 7 of the periodic table, they're known as "salt-formers" and exist as diatomic molecules.

Card 3

Front

what are atoms?

Back

Preview of the front of card 3

Card 4

Front

what are protons?

Back

Preview of the front of card 4

Card 5

Front

what are electrons?

Back

Preview of the front of card 5
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