1 Flashcards

1
Q

Atom

A

the smallest unit of matter, being made of protons, neutrons, and electrons

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2
Q

Molecule

A

being made of a group of atoms

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3
Q

Element

A

a pure substance that can’t be split by any physical means

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4
Q

Compound

A

two or more different elements coming together that can’t be split by physical means

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5
Q

Mixture

A

two or more materials coming together that can be split by physical means

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6
Q

Homogeneous Mixture

A

a substance that you’re unable to see through

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7
Q

Heterogeneous Mixture

A

a substance you can see through

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8
Q

Where are Protons located?

A

the nucleus of an atom

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9
Q

A.P.E.

A

Atomic Number = Protons = Electrons

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10
Q

M.A.N.

A

Mass - Atomic Number = Neutron

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11
Q

Where are Neutrons located?

A

The nucleus of the Atom

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12
Q

Where are Electrons located?

A

They circle the nucleus of the atom

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13
Q

What are the charge of all three sub-atomic particles?

A

Proton=positive, Neutron=Neutral, Electron=Negative

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14
Q

Valence Electrons

A

Electrons found farther out than most electrons

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15
Q

What is true about elements placed in the same column (group or family) in the periodic table?

A

They display similar properties and features

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16
Q

Describe how to find out the number of valence electrons for elements in groups 1 & 2 and 13-18.

A

The number is equal to the atoms in the group

17
Q

Give an example of some common mixtures.

A

Salt water, Air, Coffee

18
Q

Where can you find metals on the periodic table?

A

the entire left of the table (except hydrogen) and until you reach the metalloids

19
Q

Where can you find nonmetals on the periodic table?

A

on the right with the metalloids and including hydrogen

20
Q

What are the elements called that are on the staircase (or zig-zag line) called?

A

Metalloids

21
Q

Draw a picture of a Carbon Atom

A