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Chapter 2.1 Flashcards

(15 cards)

1
Q

What three sub atomic particles make the atom?

A

Protons Neutrons Electrons

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2
Q

How are isotopes of an element similar

A

Same number of protons and electrons, different neutrons

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3
Q

How does a compound differ from its component elements

A

it has different physical and chemical properties

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4
Q

main types of chemical bonds

A

Ionic and Covalent

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5
Q

atom

A

smallest and basic unit of matter

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6
Q

nucleus

A

made of protons/neutrons, center of atom

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7
Q

electrons

A

negatively charged particle

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8
Q

element

A

pure substance of one type of atom

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9
Q

isotope

A

atoms of the same element that have different number of neutrons

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10
Q

compound

A

a substance formed by chemical combination of two or more elements

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11
Q

Ionic Bond

A

Formed when one or more electron is transferred from one atom to another

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12
Q

Ion

A

Positively or negatively charged atoms

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13
Q

Covalent bond

A

when electrons are shared between atoms(not transferred)

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14
Q

Molecule

A

when atoms are joined by covalent bonds; smallest unit of most compounds

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15
Q

Van der Waals Forces

A

a slight attraction between molecules when they are very close to each other

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