Chapter 2 Vocabulary Flashcards

You may prefer our related Brainscape-certified flashcards:
0
Q

A substance containing two or more elements in a fixed ratio.

A

Compound

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
1
Q

A substance that cannot be broken down to other substances by chemical means.

A

Element

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

An element that is essential for life but required in extremely minute amounts.

A

Trace Elements

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Smallest unit of matter that retains the properties of an element.

A

Atom

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

The total mass of an atom

A

Atomic mass

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

One of the several atomic forms of an element.

A

Isotope

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

An isotope whose nucleus decays spontaneously, giving off particles and energy.

A

Radioactive isotope

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

An energy level representing the distance of an electron from the nucleus of an atom.

A

Electron shell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

A strong chemical bond in which two atoms share one or more pairs of outer-shell electrons.

A

Covalent bond

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Two or more atoms held together by covalent bonds

A

Molecule

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

A molecule containing polar covalent bonds and having an unequal distribution of change.

A

Polar molecule

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

A chemical bond resulting from the attraction between oppositely charged ions.

A

Ionic bond

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

A type of weak chemical bond formed when the partially positive hydrogen atom participating in a polar covalent bond in one molecule is attracted to the partially negative atom participating in a polar covalent bond in another molecule.

A

Hydrogen bond

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

The making and breaking of chemical bonds

A

Chemical reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly