Atoms Flashcards

1
Q

What subatomic particles are atoms made up of

A

Protons, neutrons and electrons

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2
Q

What is the charge, mass and position of a proton

A

Charge +1
Mass 1
Location nucleus

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3
Q

What is the charge, mass and location of neutron

A

Mass 1
Charge 0
Location nucleus

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4
Q

What is the charge, mass and location of an electron

A

Mass 1/2000
Charge -1
Location shells

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5
Q

Atomic number definition

A

Number of protons in a nucleus of an atom

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6
Q

Mass number definition

A

The number of protons and neutrons in a nucleus of an atom

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7
Q

Define isotopes

A

Atom of the same element with a different number of neutrons

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8
Q

What is formed when an atom loses electrons

A

Positively charged ions(cations)

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9
Q

What is formed when an atom gains electrons

A

A negative ion (anion)

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10
Q

What are group 1 elements known as

A

Alkali metals

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11
Q

What are group 2 elements known as

A

Alkali earth metals

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12
Q

What are the elements to the left of the stairs known as

A

Metals

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13
Q

What are the elements to the right of the stairs known as

A

Non metals

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14
Q

What are the elements in the middle of the periodic table known as

A

Transition metals

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15
Q

What are the group 0 elements known as

A

Nobel gases

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16
Q

What are the group 7 elements known as

A

Halogens

17
Q

How many outer electrons to group 7 elements have

A

7

18
Q

What do periods mean

A

They tell us how many shells are in that element

19
Q

What do groups mean

A

They tell us how many electrons there are in the valance shell. (The last shell)