Atoms Answers
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A blue circle labeled proton and A overlaps a pink circle labeled neutron and C. The overlap is labeled B.
A
Is negatively chargedB
Has mass of 1 amuC
Orbits the nucleusD
Is positively charged2
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Which statement describes an atomic nucleus?
A
An atomic nucleus is negatively charged.B
An atomic nucleus has no electrical charge.C
An atomic nucleus consists of mostly empty space.D
An atomic nucleus contains most of the atom’s mass.3
Which statement best explains why the overall charge on an atom is zero?
A
The positive charge of the neutrons in the nucleus equals the negative charge in the electron cloud.B
The positive charge of the protons in the nucleus equals the negative charge in the electron cloud.C
The negative charge of the neutrons in the nucleus equals the positive charge in the electron cloud.D
The negative charge of the protons in the nucleus equals the positive charge in the electron cloud.4
What is the main difference between protons and neutrons?
A
Protons have a much smaller mass than neutrons.B
Protons have a much larger volume than neutrons.C
Protons have an electrical charge, but neutrons have no charge.D
Protons make up the nucleus, but neutrons orbit around the nucleus.5
Which part of an atom is mostly empty space?
A
nucleusB
proton cloudC
electron cloudD
neutron6
What do an electron and a neutron have in common?
A
Each particle has a mass of 1 amu.B
Each particle exists inside an atom.C
Each particle has an electrical charge.D
Each particle is located in the nucleus.7
Students are completing a table about a particular subatomic particle that helps make up an atom.What best explains how they should complete the table?
A
with “Inside the nucleus,” because the particle is a protonB
with “Inside the nucleus,” because the particle is a neutronC
with “Outside of the nucleus,” because the particle is a protonD
with “Outside of the nucleus,” because the particle is an electron8
What is most likely true of an atom with a mass of 15 amu?
A
There are 15 protons.B
There are 15 electrons.C
The total number of protons and electrons is 15.D
The total number of protons and neutrons is 15.9
Which subatomic particle has the least mass?
A
electronB
protonC
neutronD
the atom10
How does an atom change if all of its electrons are removed?
A
The atom’s volume increases.B
The atom’s mass increases.C
The atom becomes positively charged.D
The atom becomes negatively charged.Did you find these answers helpful?
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