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physical science > Chapter 4- Atoms And The Periodic Table > Flashcards

Chapter 4- Atoms And The Periodic Table Flashcards

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1
Q

Atom

A

Unable to be divided

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2
Q

Nucleus

A

Has a positive electric charge

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3
Q

Protons

A

Positive charge and sits in the nucleus

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4
Q

Neutron

A

A neutral charge and is in the nucleus with the protons

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5
Q

Electrons

A

Has a negative charge and is in a neutron cloud

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6
Q

Orbital

A

Electrons around the going nucleus

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7
Q

Valence

A

The number of atoms in the outermost shell. From 1-8

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8
Q

Periodic law

A

There will be similarities in the element properties

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9
Q

Period

A

Rows on the periodic table

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10
Q

Groups

A

Columns in a periodic table

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11
Q

Ion

A

Atoms with gained or lost electrons and has a negative or positive charge.

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12
Q

Atomic number

A

The amount of protons and electrons an atom has

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13
Q

Mass number

A

The weight of one atom and the number of electrons.

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14
Q

Isotope

A

Change of weight on an object by changing the number of neutrons

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15
Q

Atomic mass number (amu)

A

1/12 the mass of a carbon atom

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16
Q

Average atomic mass

A

Average of isotopes of the same element

17
Q

Metal

A

Solid

18
Q

Nonmetal

A

Anything that is not solid

19
Q

Semiconductor

A

Conductors of heat and electricity

20
Q

Alkali metals

A

The first group of the periodic table

21
Q

Alkaline earth metals

A

Group 2 in the periodic table

22
Q

Transition metals

A

Groups 3-12

23
Q

Halogens

A

Group 17

24
Q

Noble gases

A

Group 18

25
Q

Mole

A

Used to count small particles

26
Q

Avoagdro’s constant

A

6.022*10^23

27
Q

Molar mass

A

Mass in grams of 1 mol

28
Q

Conversion factor

A

Two ratios equally from two different elements

physical science (12 decks)

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