WorksheetsAtomic Structure Review
Total questions: 21
Worksheet time: 11mins
What sub-atomic particle is found OUTSIDE the nucleus of an atom?
proton
neutron
electron
What sub-atomic particles are found in the nucleus of an atom? (PICK 2)
protons
neutrons
electrons
What is the overall charge inside the nucleus of an atom?
What is the overall charge of the electron cloud of an atom?
What is the atomic number of beryllium?
What is the element symbol of iron?
I
Ir
Fe
What element has the symbol of S?
Silicon
Sulfur
Selenium
What is the mass number of sodium?
23
An atom has 3 protons. What element is the atom made of?
An atom has 8 protons. Assuming that it is a neutral atom, how many electrons would this atom have?
8
16
What is the atomic number of Potassium?
19
20
39
What is the atomic mass/mass number of Potassium?
19
20
39
How many neutrons are in Potassium?
19
20
39
Positively-charged subatomic particle
electron
neutron
proton
Negatively-charged subatomic particle
electron
neutron
proton
Neutrally-charged subatomic particle
electron
neutron
proton
