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physical science > atoms -madison easley > Flashcards

atoms -madison easley Flashcards

0
Q

What is a proton?

A

Particle that had positive charges

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1
Q

What is a nucleus?

A

Middle part made up of protons and neutrons

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2
Q

What is a neutron?

A

A particle that has no charge.

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3
Q

What is a electron?

A

A particle that has negative charge.

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4
Q

What is a orbital?

A

An atoms where there is a high probability of findings electrons

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5
Q

What is a valence electron?

A

Electron that is found in the outermost she’ll of an atom and atoms chemical properties.

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6
Q

What is periodic law?

A

The law that states the repeating chemical

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7
Q

What is a period?

A

A horizontal row of elements

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8
Q

What is a group?

A

A vertical column of elements

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9
Q

What is a metal?

A

An e,went that is shiny and conducts heat

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10
Q

What is a nonmetal?

A

An element that conducts heat and electricity poorly.

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11
Q

What is a semiconductor?

A

An element or compound that conducts electric current better than an insulator but not as well as a conductor does.

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12
Q

What is a alkali metal?

A

One of the elements of group one of the periodic table.

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13
Q

What is a alkaline earth metal?

A

One of the elements of group two

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14
Q

What is the transition metal?

A

One of the element of group 3-12

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15
Q

What is a halogens?

A

One of the elements of group 17

16
Q

What is noble gases?

A

An I reactive element of group 18

17
Q

What is a ion?

A

An atom or group of atoms that has lost or gained one or more electrons and has a negative or positive charge.

18
Q

What is an atomic number?

A

The number of protons in the nucleus

19
Q

What is the mass number?

A

The sum of the number of protons and neutrons in the nucleus

20
Q

What is isotopes?

A

An atom that has the same number of protons as other atoms of the same element do but that has a different number of neutrons

21
Q

What is atomic mass unit?

A

A unit of mass that describes the mass of an atom or molecule

22
Q

What is average atomic mass?

A

The weighted average of the masses of all naturally occurring isopes of element.

23
Q

What is a mole?

A

The si unit used to measure the amount of substance whose number of particles is the same as the number of atoms of carbon in 12 g of carbon-12

24
Q

What is avogadro’s constant?

A

Equals 6.022x10^23/mol the number of the particles in 1 mol

25
Q

What is the molar mass?

A

The mass in grams of 1 mol of a substance

26
Q

What is conversion factors?

A

A ratio that is derived from the equality of two different units and that can be used to convert from one unit to another.

27
Q

what does atom mean?

A

A basic unit of a chemical element

physical science (7 decks)

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