Atoms Flashcards

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1
Q

The smallest unit of an element to that maintains the properties of that element:

A

Atom

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2
Q

An atom that has the same number of protons but different number of neutrons:

A

Isotope

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3
Q

An atom that has an unequal number of protons and electrons:

A

Ion

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4
Q

An atom with more protons than electrons is called:

A

Positive Ion

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5
Q

An atom with more Electrons than protons is called:

A

Negative Ion

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6
Q

The three parts of an atom are classified by their:

A

Charge, Location, and Mass

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7
Q

The parts of an atom are:

A

Proton, Neutron, and Electron

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8
Q

Charge and location of a proton?

A

Positive and inside the nucleus

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9
Q

Charge and location of a neutron?

A

No charge or neutral and inside the nucleus.

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10
Q

Charge and location of a electron?

A

Negative and outside the nucleus.

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11
Q

It takes about ___ electrons to equal the mass of 1 proton

A

2000

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12
Q

Atomic Mass Unit

A

the SI unit to express the mass of a proton

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13
Q

Mass of both protons and neutrons?

A

1 AMU

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14
Q

What particle has the least mass?

A

Electron

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15
Q

How did Democtiris describe atoms?

A

A single material with one shape and size

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16
Q

Central region of the atom:

A

Nucleus

17
Q

Region where electrons are most likely to be found:

A

Electron Cloud

18
Q

The number of protons in the nucleus of an atom:

A

Atomic Number

19
Q

The sum of protons and neutrons in an atom:

A

Mass Number

20
Q

The lowest possible energy level:

A

Ground State

21
Q

Possible energies that electrons can have:

A

Energy Levels

22
Q

Visual model of the most likely locations for electrons in an atom:

A

Orbital

23
Q

Where N’s change to P’s and E’s (force)

A

Weak force

24
Q

How E’s arrange in orbit:

A

Electron Configuration

25
Q

Force that holds E’s in clouds:

A

Electromagnetic Force