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PS Mid Unit One Exam

Last updated 9 months ago

20 questions

1

1

1

1

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Required

1

SCI.8.5b

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1

1

Question 1

1.

Question 2

2.

Question 3

3.

Question 4

4.

Question 5

5.

Question 6

6.

Question 7

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Question 8

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Question 9

9.

Question 10

10.

Question 11

11.

Question 12

12.

Question 13

13.

Question 14

14.

Question 15

15.

Question 16

16.

Identify how many valence electrons are found in the atom model below.

Question 17

17.

Question 18

18.

Question 19

19.

Question 20

20.

What is the state of matter for water at 100°C?

Plasma

Solid

Gas

Liquid

Which particle has a positive charge?

Proton

Photon

Electron

Neutron

What state of matter has a definite volume but no definite shape?

Plasma

Gas

Solid

Liquid

What is the charge of a neutron?

Positive

Neutral

Variable

Negative

What forms the nucleus of an atom?

Electrons only

Ions only

Protons and Neutrons

Molecules only

What do we call substances made of two or more elements?

element

Mixtures

Isotopes

Compounds

Which state of matter has no fixed volume or shape?

Liquid

Gas

Solid

Bose-Einstein condensate

Which particles are found outside the nucleus?

Electrons

Protons

Quarks

Neutrons

What is the atomic number of an element?

Number of protons

Mass of atom

Number of neutrons

Number of electrons

What can change a solid directly into a gas?

Condensation

Melting

Evaporation

Sublimation

What do atoms combine to form?

Ions

Protons

Molecules

Electrons

Which state of matter contains particles that vibrate in place?

Gas

Solid

Plasma

Liquid

What happens to gas particles when cooled?

They move slower

They gain mass

They spread out

They contract

How are metals generally characterized on the periodic table?

Poor conductivity

Gaseous at room temp

Brittle

Good conductivity

What is the process of changing a gas to a liquid called?

Condensation

Evaporation

Solidification

Sublimation

What are valence electrons?

Electrons in the first energy level

Electrons in the last energy level

Protons in the nucleus

Neutrons in the nucleus

Which group on the periodic table contains noble gases?

Group 7

Group 18

Group 1

Group 3

Which group contains reactive metals?

Group 1

Noble gases

Group 17

Transition metals

How many periods are in the periodic table?

Eight

Seven

Six

Five