Atomic Number and Mass Number
Chemistry ⇒ Atomic Structure and the Periodic Table
Atomic Number and Mass Number starts at 7 and continues till grade 12.
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See sample questions for grade 8
An atom has 11 protons and 12 neutrons. What is its mass number?
An atom has 15 protons, 16 neutrons, and 15 electrons. What is its mass number?
An atom has 19 protons, 20 neutrons, and 19 electrons. What is its mass number?
An atom has 2 protons, 2 neutrons, and 2 electrons. What is the element?
An atom has 26 protons, 30 neutrons, and 26 electrons. What is its mass number?
An atom has 6 protons, 6 neutrons, and 6 electrons. What is its mass number?
An atom of chlorine has a mass number of 35 and an atomic number of 17. How many neutrons does it have?
An atom of magnesium has 12 protons and 12 neutrons. What is its mass number?
If an atom has 12 protons, 12 neutrons, and 12 electrons, what is its atomic number and mass number?
If an atom has 14 protons and 14 neutrons, what is its mass number?
If an atom has 17 protons, 18 neutrons, and 17 electrons, what is its atomic number?
If an atom has 20 protons and 22 neutrons, what is its mass number?
If an atom has 3 protons, 4 neutrons, and 3 electrons, what is its atomic number and mass number?
If an atom has 7 protons, 8 neutrons, and 7 electrons, what is its atomic number and mass number?
If an atom has an atomic number of 8, how many electrons does it have in a neutral state?
If the atomic number of an atom is 10, what is the element?
The atomic number of carbon is 6. How many protons does a carbon atom have?
What does the atomic number of an element represent?
