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WorksheetsEssential Chemistry
Total questions: 21
Worksheet time: 11mins
What are the three major subatomic particles?
(a)
What is matter?
Anything that has mass and takes up space (volume)
Things that make up space
particles with shape
elements and compounds
Which of the following correctly represent the 3 main states of matter?
protons, neutrons and electrons
solid, liquid and gas
metals, non-metals and gas
solid, liquid and metal
Which of the following is NOT a characteristic of solids?
fixed shape
particles close together
particles vibrate in a fixed position
particles move quickly
Which of the following is NOT a characteristic of a liquid?
has a fixed shape
has a fixed volume
particles close together but can move around a certain amount
does not have a fixed shape
Which of the following is characteristic of gasses?
Has a fixed volume
Particles are far apart and can be compressed
Low energy
particles are closely bonded together
Select the two options that best represent a proton
Positive particle (+1)
The number of protons always matches the number of neutrons
Found in the nucleus of an atom
indicates the atomic mass of an atom
Select 2 options that DO NOT represent neutrons
Have a positive charge (+1)
Found in the nucleus of an atom
Match the atomic number on the periodic table
Atomic mass - Atomic number = number of neutrons
Select 2 options that are characteristic of electrons
Found in the nucleus
Commonly match the number of protons in a stable atom
Found in the cloud that surrounds the nucleus
Have no charge
The atomic number of an atom tells us how many (a) an element has
The atomic mass of an atom is the sum of the protons and (a) in a particular element
The number of electrons in an atom are usually equal to the number of protons
True
False
Elements are composed of only a single type of atom
False
True
A compound is
made up of only a single type of atom
made up of protons, neutrons and electrons
made up on two or more different types of atoms
found on the periodic table
A molecule is a group of atoms bonded together
True
False
Select the answers that are correct for the periodic table arrangement
It is ordered by the atomic number
It is ordered by the atomic mass
Elements are grouped based on their properties (i.e. the way they react)
The metals, non-metals and gases are all mixed up
Valance electrons are found in the outer shell of atoms and are important in bonding
True
False
Adding heat to a particle will
increase energy and make the particles move slower
increase energy and make the particles vibrate faster
result in a change of state from gas to liquid to solid
not have any effect
When you remove heat from particles
they will move faster due to a decrease in energy
they will move slower due to an increase in energy
make the particles vibrate slower with less energy
the material will change from a solid to a liquid to a gas
Isotopes are elements that have the same number of protons but different numbers of neutrons. They are different types of elements.
True
False
The particles can be compressed in which states of matter?
solid
liquid
gas
