5th - Science Unit 1 Lesson 1 REVIEW

Question 0

What is the particle in an atom that has a negative charge?

Answer 0

Electron

Question 1

What is the smallest unit of an element that retains that element’s properties?

Answer 1

Atom

Question 2

What is substance that cannot be broken down into something simpler?

Answer 2

Element

Question 3

What is anything that has mass and takes up space?

Answer 3

Matter

Question 4

What is two or more atoms that are joined into one particle?

Answer 4

Molecule

Question 5

What is in the nucleus of atom and has no electric charge?

Answer 5

Neutron

Question 6

What is the center of an atom?

Answer 6

Nucleus

Question 7

What is in the nucleus of an atom and has a positive electrical charge?

Answer 7

Proton

Question 8

Every substance on Earth is made of one or more what?

Answer 8

Elements

Question 9

What did Dmitri Mendeleev creat in the 1860’s?

Answer 9

The Periodic Table

Question 10

One important property of an element is its state at what?

Answer 10

Room temperature

Question 11

Another important property is the way it what with other elements?

Answer 11

Combines or mixes chemically

Question 12

A third property is the element’s classification. What are the classifications?

Answer 12

Nonmetal, metal, and metalloid

Question 13

Each element is composed of tiny particles called what, the smallest units that retain the element’s properties?

Answer 13

Atoms

Question 14

What is the center of an atom?

Answer 14

Nucleus

Question 15

What does the nucleus contain?

Answer 15

Protons and neutrons

Question 16

What else do atoms contain that move around the nucleus?

Answer 16

Electrons

Question 17

How do you determine an element’s atomic number?

Answer 17

Count its protons

Question 18

How do you determine an element’s atomic mass?

Answer 18

Counts it’s protons and neutrons

Question 19

What are the letters in the center of each element box?

Answer 19

They are the element’s symbol