Review Flashcards

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1
Q

Atom

A

Building blocks of materials

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2
Q

Elements

A

Same type of atoms

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3
Q

Sub - particles

A
  1. Protons
  2. Electrons
  3. Neutrons
    PEN
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4
Q

Electronic configuration

A

Electron distribution in the shells

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5
Q

Shells/orbits

A

Electrons are placed in shells/orbits

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6
Q

Element representation

A

14
N
7

14 is the mass number and 7 is the atomic number

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7
Q

Atomic number

A

Number of protons/electrons

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8
Q

Mass number

A

Total number of protons & neutrons

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9
Q

Valance shell

A

Outermost shell of an atom

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10
Q

Valance electrons

A

Electrons in the valance shell

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11
Q

Octet state

A

Shell has 8 electrons and is complete

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12
Q

Duplet state

A

Shell has 2 electrons and is complete

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13
Q

Ions

A

Charged particles

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14
Q

Cations

A

Positively charged

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15
Q

Anions

A

Negatively charged

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16
Q

Neutral aim

A

Atoms have equal number of protons & electrons