The atomic number of an atom is _____________________.

The number of protons added to the number of neutrons

An electron is in a region outside the nucleus. An electron ____________.

Has less mass than a proton and has a negative charge

Is larger than a proton and has no charge

Is smaller than a proton and has no charge

The atomic mass of an element is equal to:

Total # of protons and neutrons.

What do these isotopes of carbon all have in common?

protons, atomic number, and mass number

What quantities vary between isotopes of an element?

protons, electrons, and atomic mass

protons, electrons, and atomic number

The light/color of fireworks is caused by electrons emitting energy as they move from lower to higher energy levels.

move from higher to lower energy levels.

move from lower to higher energy levels.

Which statement about subatomic particles is true?

Protons and electrons have opposite charges.

Protons and electrons have almost the same mass

like protons and electrons, neutrons have a charge.

Protons and neutrons have the same charge.

Which statement best describes the process by which an electron in an atom emits light energy?

An electron releases light energy as it moves from a higher energy level to a lower energy level

an electron continuously emits light as it moves in its energy level

An electron absorbs light as it moves from a lower energy level to a higher energy level

An electron emits light energy as regular intervals as more electrons join its energy level

Physical Science chemistry review

Authored by MATTHEW STRICKLAND

Chemistry

10th - 11th Grade

NGSS covered

Used 250+ times

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In Niels Bohr’s model of the atom, electrons move

like balls rolling down a hill.

like popcorn in a popcorn popper.

like beach balls on water waves.

like planets orbiting the sun.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A particle that moves around the nucleus is a(n)...

Proton

Neutron

Electron

Quark

True or False? Neutrons have a negative charge

True

False

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Particles in an atom that are neutral and have no charge are

negatrons

electrons

neutrons

protons

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

the central region of an atom where its neutrons and protons are is its

nucleus

electron cloud

core

center

The positive particles of an atom are

electrons

positrons

neutrons

protons

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which is the smallest?

electron

proton

atom

neutron

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Physical Science chemistry review

In Niels Bohr’s model of the atom, electrons move

A particle that moves around the nucleus is a(n)...

True or False? Neutrons have a negative charge

Particles in an atom that are neutral and have no charge are

the central region of an atom where its neutrons and protons are is its

The positive particles of an atom are

Which is the smallest?

Which of the following has all of the subatomic particles that make up an atom?

An atom has an atomic number of 15 and a mass number of 31. How many protons are there in the atom?

An atom has an atomic number of 30 and a mass number of 65. How many neutrons are in the atom?

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