2. Atoms & Elements

How many protons, neutrons, and electrons are there in a neutral atom of 43k (potassium-43)?

Rounded to the nearest whole number, how many electrons are in an atom of zirconium?

How many protons and neutrons does a nucleus designated as ⁴⁰₁₈X contain?

An atom's mass number is 13 and its atomic number is 6. How many neutrons are in its nucleus?

How many protons, neutrons, and electrons are there in a neutral atom of ⁹⁷Tc (Technetium-97)?

What is the atomic symbol and mass number for an atom containing 50 protons and 64 neutrons?

Carbon has an atomic number of 6. What can you conclude about carbon from this fact?

Rounded to the nearest whole number, how many neutrons, on average, are in an atom of osmium?

Which term is defined as the sum of protons and neutrons in an atom?

In an electrically neutral atom the number of protons in the nucleus is equal to the number of?

The sum of the number of protons and neutrons in the nucleus of an atom is called the

Sodium's atomic number is 11. What does this tell you about an atom of sodium?

In which of these cases do we have enough information to say that the atom is electrically neutral?