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Physical Science: E-Exam DL

Authored by Melissa Mahler

English

9th Grade

Physical Science: E-Exam DL
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12 questions

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1.

MATCH QUESTION

30 sec • 1 pt

Match the following terms with their definitions:

The total number of protons and neutrons in an atom's nucleus.

Isotope

The number of protons in the nucleus of an atom.

Element

An atom or molecule with a net electric charge due to the loss or gain of one or more electrons.

Atomic Number

A pure substance consisting only of one type of atom.

Ion

Atoms of the same element that have different numbers of neutrons.

Mass Number

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Fill in the blank: The atomic number of an element is the number of ______ in the nucleus of an atom.

protons

neutrons

electrons

atoms

3.

MATCH QUESTION

30 sec • 1 pt

Match the following terms with their definitions:

A positively charged particle found in the nucleus of an atom.

Neutron

The weighted average mass of an atom's isotopes.

Electron

A negatively charged particle that orbits the nucleus of an atom.

Nucleus

The central part of an atom, containing protons and neutrons.

Atomic Mass

A neutral particle found in the nucleus of an atom.

Proton

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Fill in the blank: The mass number of an atom is the sum of the number of ______ and ______ in the nucleus.

protons and neutrons

electrons and protons

neutrons and electrons

protons and electrons

5.

MATCH QUESTION

30 sec • 1 pt

Match the following terms with their definitions:

Electrons in the outermost shell of an atom.

Valence Electrons

The distance from the nucleus to the outermost shell of an atom.

Period

A horizontal row in the periodic table.

Ionization Energy

A vertical column in the periodic table.

Group

The energy required to remove an electron from an atom.

Atomic Radius

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Fill in the blank: The atomic radius of an element is the distance from the nucleus to the ______ of the electron cloud.

outer edge

center

middle

core

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Complete the following: Element: Nitrogen Atomic Number: 7 Mass Number: 14 Protons = ______ Electrons = ______ Neutrons = ______

Protons = 7, Electrons = 7, Neutrons = 7

Protons = 7, Electrons = 8, Neutrons = 6

Protons = 6, Electrons = 6, Neutrons = 8

Protons = 8, Electrons = 7, Neutrons = 6

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