TnReady Review (1)

Multiple Choice

Identify the subatomic particles.

• a. electron

  b. neutron

  c. proton

• a. proton

  b. neutron

  c. electron

• a. nuetron

  b. electron

  c. proton

• a. electron

  b. proton

  c. neutron

Multiple Select

Select the three subatomic particles with the correct location and charge.

• proton- positive- nucleus

• electron- negative- electron cloud

• electron- negative- nucleus

• neutron- neutral- nucleus

Multiple Choice

What is the atomic number of this atom?

• 1

• 3

• 4

• 7

Multiple Choice

An atom of gallium (Ga) has 31 protons and 39 neutrons. How many electrons does a neutrally charged atom of gallium have?

• 70

• 39

• 31

• 8

Multiple Choice

What is the mass number of an atom that has 15 protons, 15 electrons, and 16 neutrons?

• 1

• 16

• 31

• 46

Multiple Choice

An atom’s mass number is 186 and its atomic number is 75. How many neutrons does the atom have?

• $$75$$

• 111

• 186

• 261

Multiple Choice

A neutral atom has no overall electrical charge. Which would be an example of a neutral atom?

• Protons = 12

  Electrons = 10

• Protons = 10

  Electrons = 12

• Protons = 12

  Electrons = 12

Multiple Choice

How does an atom's overall charge become negative?

• The atom has gained an electron.

• The has lost an electron.

• An atom cannot become negatively charged.

Multiple Choice

Study the diagram. Which of the following is represented in the diagram?

• monoatomic element

• elemental molecules

• compound molecules

Multiple Choice

Study the diagram. Which of the following is represented in the diagram?

• monoatomic element

• elemental molecules

• compound molecules

Multiple Choice

Study the diagram. Which of the following is represented in the diagram?

• monoatomic element

• elemental molecules

• compound molecules

Multiple Select

Select two formulas of compound molecules.

• $$NaCl$$  

• $$O_3$$  

• $$CH_4$$  

• $$S_8$$  

• $$Ne$$  

Match

Match the following models to their correct descriptions.

mixture of elements

mixture of elements and compounds

mixture of compounds

elements only

compounds only

• mixture of elements

• mixture of elements and compounds

• mixture of compounds

• elements only

• compounds only

Multiple Choice

Which picture matches the state of matter described below?

• 1. high kinetic energy

• 2. no definite shape or volume

• 3. particle are spread out

• lemonade

• chocolate bar

• helium

• ice cream sandwhich

Multiple Choice

Examine the model. What would happen to the model if the pressure were increased?

• The particles would get farther apart and become a gas.

• The particles would get closer together and become a liquid.

• The particles would get farther apart and become a liquid.

• The particles would get closer together and become a solid.

Multiple Choice

Water exists as a _____________ at 4 mmHg and 50 °C.

• solid
• liquid
• gas
• plasma