NEW
Font size
Worksheetsreview 3/4
Total questions: 23
Worksheet time: 13mins
In the picture, a can of Pepsi sunk and a can of Diet Pepsi are put into water. The Pepsi must be
more dense than water
less dense than water
it has no density
it has a density of 1 g/mL
when an object is compressed so that its mass is packed into a smaller space, its density
increases
decreases
remains constant
What is the number of protons in the nucleus of an atom that determines the chemical properties of an atom?
mass number
atomic mass
atomic number
atomic symbol
What is the combined mass of all the protons and neutrons of an atom and is approximately equal to the number of protons and neutrons?
atomic mass
atomic number
subatomic particles
nucleus weight
Classification system for elements is called:
Elements
Periods
The Periodic Table of Elements
Families
The abbreviation for an element:
element name
atomic number
chemical symbol
atomic symbol
What is the sum of an atom's protons and neutrons called?
atom
atomic theory
atomic mass
atomic number
The _____ is based on the number of protons in the nucleus of the atom.
atomic structure
periodic table of the elements
atomic number
atomic mass
What subatomic particle is represented by this symbol (+):
neutron
proton
electron
What subatomic particle is represented by this charge (-):
neutron
proton
electron
Why do the electrons surround the nucleus?
the negative electrons are attracted to the neutral neutrons
the negative electrons are repelled by the neutral neutrons
the negative electrons are attracted to the positive protons
the negative electrons are repelled by the positive protons
All matter is made of _____.
light
energy
cells
atoms
