8th GRADE PHYSICAL SCIENCE MIDTERM EXAM STUDY GUIDE

The atomic number for Oxygen is 8. The mass number is 15.9994. How would you obtain the number of its neutrons?

Tags

NGSS.MS-PS1-1

What is the process in which unstable nuclei of radioactive atoms become stable by emitting charged particles and energy?

Tags

NGSS.HS-PS1-8

Look at the following reaction: 2C2H6 + 7 O2----4CO2 + 6H2O. What type of reaction is this?

• Decomposition

• Synthesis

• Double Replacement

• Combustion

In which type of chemical reaction is a compound is made from simpler materials?

• Decomposition

• Synthesis

• Combustion

• Double Displacement

A neutral particle in the nucleus of an atom is a

• proton

• photon

• electron

• neutron

Tags

NGSS.MS-PS1-1

What's true about predicting the products of a chemical reaction?

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the unit of measurement used to determine the quantities of reactants and products in a chemical reaction?

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NGSS.HS-PS1-7

Three types of radioactive decay include gamma, alpha, and beta decay

• True

• False

Tags

NGSS.HS-PS1-8

Calculate the atomic number of Zinc (Zn) using the periodic table.

Tags

NGSS.HS-PS1-1

Describe what happens in a nuclear chain reaction.

Tags

NGSS.HS-PS1-8