Element and Compound Flashcards Preview

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Flashcards in Element and Compound Deck (20)
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1
Q

Element

A

pure substance that can’t be broken down any further

2
Q

Group

A

A column on the periodic table

3
Q

Period

A

A row on the periodic table

4
Q

Compound

A

A substance made of two or more elements chemically combined in a specific ratio

5
Q

Mixture

A

Two or more substances that are together in the same space but aren’t chemically combined

6
Q

Atom

A

Basic particle of elements are made up of

7
Q

Proton

A

Positive charge, has mass, found in the nucleus

8
Q

Neutron

A

No charge, has mass, found in the nucleus

9
Q

Electron

A

Negative charge, found outside the nucleus

10
Q

Atomic number

A

The number of protons in the nucleus

11
Q

Family

A

Elements that have similar traits

12
Q

Metal

A

Malleable, good conductor, usually a solid; found in nature as solid form, luster, on the left and in the middle of the periodic table

13
Q

Nonmetal

A

On the right side of the periodic table, brittle, dull, exists as a gas

14
Q

Metalliod

A

They have properties of both metals and nonmetals, can be shiny but also brittle, they are semiconductors, on the stair step of the periodic table

15
Q

Chemical formula

A

Symbols that show the elements in a compound and the ratio of atoms.

16
Q

Homogeneous mixture

A

Same uniform appearance and composition throughout

17
Q

Heterogeneous mixture

A

Consists of visibly different substances or phases

18
Q

Element symbol

A

An abbreviation for a chemical element

19
Q

Element name

A

The name of the element

20
Q

Mass number

A

The total number of protons and neutrons in the nucleus