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Science Y9 > Unit 9B- Definitions- Periodic Table > Flashcards

Unit 9B- Definitions- Periodic Table Flashcards

1
Q

Atomic number

A

The number of protons in an atom’ nucleus

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2
Q

Groups

A

The vertical columns in the periodic table

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3
Q

Periods

A

The horizontal rows in the periodic table

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4
Q

Atomic mass

A

How much matter is in the nucleus

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5
Q

Mass Number

A

The total number of protons and neutrons

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Science Y9 (14 decks)

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