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
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?
Describe the difference between mass number and atomic number.
Explain why atoms are electrically neutral.
If an atom has 8 protons, 8 neutrons, and 10 electrons, what is its overall charge?
If an atom has a mass number of 35 and an atomic number of 17, how many neutrons does it have?
Name the three main subatomic particles and state one property of each.
State the location of protons, neutrons, and electrons in an atom.
What is the charge on a proton?
Which subatomic particle determines the atomic number of an element?
Which subatomic particle has no electrical charge?
Which subatomic particle is found outside the nucleus?
Which subatomic particle is responsible for chemical bonding?
A certain atom has 15 protons, 16 neutrons, and 18 electrons. What is the symbol and charge of this ion?
A neutral atom of element X has a mass number of 23 and contains 12 neutrons. What is the atomic number of element X?
Consider an atom with 20 protons, 20 neutrons, and 18 electrons. Calculate its mass number and state its net charge.
Explain why removing an electron from a neutral atom results in a positively charged ion.
Which subatomic particle is responsible for the identity of an element, and why?
