Subatomic Particles
Chemistry ⇒ Atomic Structure and the Periodic Table
Subatomic Particles starts at 7 and continues till grade 12.
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See sample questions for grade 10
Describe the difference between mass number and atomic number.
Explain why atoms are electrically neutral.
Name the three main subatomic particles and state one property of each.
State the location of protons, neutrons, and electrons in an atom.
An atom has 11 protons, 12 neutrons, and 11 electrons. What is its mass number?
An atom of carbon has 6 protons and 6 neutrons. What is its mass number?
An ion has 17 protons, 18 neutrons, and 18 electrons. What is its charge?
If an atom has 8 protons, 8 neutrons, and 10 electrons, what is its overall charge?
What is the relative mass of a neutron?
(1) 1
(2) 0
(3) 1/1836
(4) 1836
Which of the following is NOT a subatomic particle?
(1) Proton
(2) Neutron
(3) Electron
(4) Molecule
Which of the following particles is not found in the nucleus?
(1) Proton
(2) Neutron
(3) Electron
(4) Both proton and neutron
Which of the following statements is correct?
(1) Electrons are heavier than protons.
(2) Neutrons have no charge.
(3) Protons are negatively charged.
(4) Neutrons are found outside the nucleus.
Isotopes of an element have the same number of ________ but different numbers of ________.
The atomic number of an element is equal to the number of ________ in its atom.
The charge of an electron is ________.
The mass number of an atom is the sum of the number of ________ and ________.
True or False: Isotopes have different numbers of protons.
True or False: Protons and neutrons have approximately the same mass.
True or False: The mass of an atom is mainly due to its electrons.
True or False: The number of electrons in a neutral atom is equal to the number of protons.
