Vocabulary X Flashcards Preview

9th Earth Science A-G > Vocabulary X > Flashcards

Flashcards in Vocabulary X Deck (23):
1

Matter

any material that has mass and takes up space

2

Mass

the measure of the amount of matter in a substance

3

Weight

the measure of the amount of matter in a substance including the force of gravity on the substance

4

Plasma

the most common phase of matter in the universe. It makes up stars and the sun

5

Organic matter

refers to material that was once living and is made up of carbon

6

Elements

are the smallest form of the substance that cannot be broken down by chemical means

7

Atoms

are the smallest particle of an element that is still that element

8

Periodic table

a chart arranged in order of increasing number of protons in an element

9

Nucleus

the center of an atom where protons and neutrons are found

10

Protons

a positively charged particle found in the nucleus of an atom. It is the identity of the element

11

Electrons

a negatively charged particle surrounding the nucleus

12

Neutrons

a neutrally charged particle found in the nucleus of an atom

13

Electron cloud

the general area in an atom where electrons are found

14

Energy level

areas, or levels, within the electron cloud where certain numbers of electrons are found

15

Atomic number

the same as the number of protons

16

Isotope

variations found in nature of the same element that have a different number of neutrons in their nucleus

17

Atomic Mass

for Earth science purposes, it is the mass of the most common isotope of that element when rounded

18

Mass Number

the mass of the combined protons and neutrons of an isotope

19

Ion

an atom that has gained or lost an electron

20

Covalent bond

a type of bond where two atoms share their electrons

21

Ionic bond

a type of bond where one Atom either gives up or takes an electron from another atom

22

Molecules

two or more atoms held together by a covalent bond

23

Hydrogen bond

the bond that occurs between an electropositive hydrogen atom in one molecule and an electronegative atom in another molecule