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WorksheetsAtomic Structure
Total questions: 20
Worksheet time: 12mins
What is atomic mass?
The average mass that is weighted based on the abundance of the isotopes of the element
The mass that is weighted based on the abundance of the isotopes of the element
The average mass that is weighted based on the abundance of the protons of the element
The average mass that is weighted based on the abundance of the neutrons of the element
What is an atomic number?
# of protons + # of electrons
# of electrons + # of neutrons
the little number at the top of the Element symbol
What is the Mass number?
It's the same as the atomic number - little number on top of element symbol
okay
What is an isotope?
Atoms of the same element but different mass numbers
Same protons, different neutrons
Atoms of the same element but different mass numbers
Same neutrons, different protons
Atoms of the same element but have different atomic masses
What is an Ion?
Atom with a positive or negative charge because it gained or lost electrons
Atom with a Neutral charge because it gained or lost electrons
Atom with a positive or negative charge because it has electrons
Atom with a positive or negative charge because it gained or lost protons
What are the charges of a cation and anion?
Cation = Positive
Anion = Negative
Cation = Negative
Anion = Postive
What is Coulombs Law?
The understanding of Electrostatic attraction and repulsion
The understanding of Protostatic attraction and repulsion
When Christopher Columbus sailed to North America in 1492
What are moles?
The SI unit for the amount of a substance
A molecule
What is molar mass?
The mas of one mole in a substance
The mass of molecules
What is Avogadro's number?
The number of particles in exactly 1 mole
The number of particles in a molecule
Atoms of the Same elements have equal
numbers of what?
Protons
Electrons
Neutrons
Atoms with equal numbers of protons, but
different numbers of neutrons are?
Isotopes
Ions
moles
If an atom is neutral, then the number
of protons must equal the number of?
Protons
Electrons
Isotopes
Neutrons
The mass number is equal to the number
of ____ + the number of ____
protons, neutrons
protons, electrons
neutrons, protons
neutrons, electrons
How do you determine the atomic number of an element?
the amount of protons
the amount of electrons
the amount of Neutrons
Why are 6/1 Hydrogen and 8/1 Hydrogen Isotopes?
(a)
What id the average mass formula?
(a)
What is Avogado's number?
(a)
How is the molar mass found?
It's the same as the atomic mass
What are the 7 diatomic molecules?
(a)
