In this worksheet, we will practice working out the number of protons, neutrons, and electrons an atom of an isotope has from its chemical symbol.
A platinum atom has the chemical symbol
How many protons does the platinum atom have?
How many neutrons does the platinum atom have?
The chemical element symbol for titanium-48 is .
What is the atomic number of titanium?
What is the mass number of titanium?
All atoms of the same element have the same number of .
The mass number of an atom is how many it has.
- Cprotons plus electrons
- Dprotons plus neutrons
A neon atom has the chemical symbol .
How many protons does the neon atom have?
How many neutrons does the neon atom have?
Which of the following is another name for “atomic number?”
- ANucleon number
- BMass number
- CElectron number
- DProton number
- ENeutron number
The atomic number of an atom is how many it has.
- Cprotons plus neutrons
- Eprotons plus electrons