WorksheetsAtomic Structure
Total questions: 21
Worksheet time: 2hrs 36mins
Look at this picture of Argon off the periodic table. Which of the following is true for this element?
18 protons
40 protons
22 protons
21.9 protons
Look at this picture of Argon off the periodic table. Which of the following is true for this element?
18 neutrons
40 neutrons
22 neutrons
21.9 neutrons
Look at this picture of Argon off the periodic table. Which of the following is true for this element when it is neutral?
18 electrons
40 electrons
22 electrons
21.9 electrons
Which part of an atom is used to identify it?
number of protons
number of neutrons
number of electrons
When you have two atoms of the same kind with different masses, Carbon-12 and Carbon-13 for example, what type of atom do you have?
Neutral atom
Ion
Isotope
When you have two isotopes of an atom, Carbon-12 and Carbon-13 for example, what has changed in the atomic structure?
Number of protons
Number of neutrons
Number of electrons
When you have an ion of an atom, O-2 for example, what has changed in the atomic structure?
Number of protons
Number of neutrons
Number of electrons
Which of the following is correct?
Protons are positive, electrons are negative, neutrons are neutral.
Protons are neutral, electrons are negative, neutrons are positive
Protons are negative, electrons are positive, neutrons are neutral
Protons are positive, electrons are neutral, neutrons are negative
The atomic mass of an atom is equal to
number of protons plus number of neutrons
number of protons plus number of electrons
number of electrons plus the number of neutrons
What two subatomic particles must be equal for an atom to have no charge (neutral).
protons and neutrons
protons and electrons
electrons and neutrons
The atomic number identifies the number of __________.
electrons
atoms
protons
neutrons
Subatomic particles that have a negative charge
electrons
protons
quarks
neutrons
The number 16 in the periodic table box of sulfur is the
ionic number
isotope
atomic mass
atomic number
The name of this particle means indivisible and it is the building block of matter
molecule
compound
atom
isotope
The center of an atom is called the ________________.
electron cloud
nucleus
neutrion
nuetron
In what part of an atom can the protons and neutrons be found?
nucleus
neutrine
electron cloud
proton cloud
Which parts of the atom move around the nucleus?
electrons
protons
electrode particles
neutrons
