Lives in the nucleus, protons, electrons, leptons, quarks, Electrons in O (Oxygen), 15.999, 16, 8, 2, Protons in He (Helium), 2, 1, 18, 4, 7, 8, To find Neutron subtract the mass from, electrons, atomic mass, atomic number, leptons, Which is the chemical symbol for Potassium, P, K, Ph, Pt, Po, Ca is the symbol for ________ and has ________ protons, Carbon, 6, Calcium, 6, Carbon, 20, Calcium, 20, Cobalt, 27, Aluminum has how many eletrons, 3, 26.9, 13, 27, 14, The atomic number is the same as, electron and neutron, neutron, proton and neutron, electron only, proton and electron, The number at the top of the element key is called, atomic number, atomic mass, number of neutrons, scientific number, chemical number, P (Phosphorus) has an atomic number of, 15, 26, 31, 30.9, 3, How many Neutrons does F have, 10, 9, 19, 27

Counting Subatomic Particles

Leaderboard

We are currently working on improving the Leaderboard functionality. Please help us by offering your feedback.

Give Feedback

Visual style

Options

We are currently working on improving the Activity Settings. Please help us by offering your feedback.

Give Feedback

Switch template

Continue editing: ?