Science Final 1-20

Question 0

What is a pure substance made of only one kind of atom?

Answer 0

Element

Question 1

What is the study of matter?

Answer 1

Chemistry

Question 2

What is the smallest piece of matter that retains all the properties of matter?

Answer 2

Atom

Question 3

Two or more elements bonded together is called a…….

Answer 3

Compound

Question 4

The smallest part of a compound is called a ……

Answer 4

Molecule

Question 5

A subatomic particle with no charge is called a ……

Answer 5

Neutron

Question 6

The ………. shows how many protons are in an atom of an element.

Answer 6

Atomic number

Question 7

The central part of an atom that contains the protons and neutrons is called the …….

Answer 7

Nucleus

Question 8

The subatomic part of an atom that has a negative charge is called
a/an….

Answer 8

Electron

Question 9

A positively charged subatomic particle is called a ……

Answer 9

Proton

Question 10

The rows across the periodic table are called…..

Answer 10

periods

Question 11

A shorthand was to write an element’s name is called a ……..

Answer 11

symbol

Question 12

Electrons are found in……….that go around the nucleus

Answer 12

shells or atoms

Question 13

The organized representation of the elements is called the……

Answer 13

Periodic Table

Question 14

The ………… is the sum of protons and neutrons in an atom.

Answer 14

Atomic Mass

Question 15

The safety device that prevents electrical fires is called a ………

Answer 15

Fuse

Question 16

The little numbers written to the lower right of a symbol that tells how many atoms of each element is called a ………

Answer 16

Subscript

Question 17

The large numbers in front of a chemical formulas that tell how many molecules is called a …….

Answer 17

coefficent

Question 18

The columns on the periodic table are the …..

Answer 18

Groups

Question 19

The electrons in the outside energy level are called ………….. electrons

Answer 19

Valence