The atomic number of krypton (Kr) is 36, and its mass number is 84. How many neutrons does it have?

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?

The center of an atom is a dense region consisting of protons and neutrons called the

Which subatomic particle plays the greatest part in determining the properties of an element?

Rounded to the nearest whole number, how many protons are in an atom of krypton? 36 48 84 120