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WorksheetsAtomic Structure Quiz #1
Total questions: 23
Worksheet time: 24mins
How many subatomic particles are there?
2
5
3
4
Which two subatomic particles share the same location in an atom?
Protons and neutrons
Protons and electrons
Electrons and neutrons
Which subatomic particle is located outside the nucleus of the atom on shells?
What is the maximum number of electrons that can be held in shell labeled n=2?
7
2
18
8
Carbon has a total of 6 electrons. What is the electron configuration for carbon?
2, 8
2,5
2,4
2, 8, 4
Explain why an atom is electrically neutral.
Which subatomic particle has no charge?
Radioactive isotopes can be used to determine the age of organic material. What radioactive isotope is commonly used to date once living specimen?
Carbon-14
Phosphorus-32
Protium
Sodium-24
What are the charges of the subatomic particles: protons, neutrons and electrons, respectively?
+1, 0, +1
0, -1, +1
-1, 0, +1
+1, 0, -1
The mass of an atom is concentrated in the
(a)
Which subatomic particle(s) determine the mass number of an atom
Protons and electrons
Protons and neutrons
Electrons only
Protons only
Calcium has 20 electrons. What is the atomic number for calcium?
Which of the following is unique to an atom?
Number of neutrons
Number of protons
The mass number
Number of isotopes
Magnesium has an atomic number of 12. What is the electronic configuration for magnesium?
What do isotopes of the same element have in common?
Number of protons
Mass number
Number of electrons
Number of neutrons
Both options 1 & 3
Which of the following significantly determines the chemical properties of an atom?
Valence electrons
The number of protons
The mass of the atom
The number of neutrons
Which statement best describes an isotope?
Atoms of the same element that have different number of electrons & mass number
Atoms of the same element that have the same number of protons but different number of electrons
Atoms of the same element that have different atomic numbers
Atoms of the same element that have different number of neutrons
Briefly explain how radioactive isotopes can be used to generate electricity
Sodium has an atomic number of 11 and a total of 12 neutrons. What is its mass number?
The nuclear notation for carbon is provided in the image shown. What does each number represent?
An atom can either have an equal amount of protons and electrons or less electrons than protons but never more protons than electrons.
True
False
Why do isotopes of the same element have similar chemical properties?
Because they have the same number of neutrons
Because they have the same mass number
Because they have the same atomic number/number of electrons
List three uses of radioactive isotopes
