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 7
Describe the role of neutrons in the nucleus.
Describe what happens to the number of electrons when an atom becomes a positive ion.
Explain why atoms are electrically neutral.
If an atom has 11 protons, 12 neutrons, and 11 electrons, what is its mass number?
If an atom has 15 protons, 16 neutrons, and 15 electrons, what is its atomic number?
If an atom has 17 protons, 18 neutrons, and 17 electrons, what is its mass number?
If an atom has 6 protons, how many electrons does it have in a neutral state?
If an atom has 8 protons and 8 neutrons, what is its mass number?
State the location of protons in an atom.
What is an isotope?
What is the charge of a proton?
What is the charge on a neutron?
What is the main difference between a proton and a neutron?
Which subatomic particle can be added or removed to form ions?
Which subatomic particle determines the atomic number of an element?
Which subatomic particle is most involved in chemical reactions?
Which subatomic particle is responsible for chemical bonding?
Which subatomic particle is responsible for the identity of an element?
Which subatomic particle is responsible for the overall charge of an atom?
A neutral atom of element X has 20 protons and 22 neutrons. If it gains 2 electrons, what is its new charge?
