An atom is built from three particles: protons (charge +1), neutrons (charge 0), and electrons (charge -1). The protons and neutrons sit in the nucleus; the electrons orbit. The symbol of a nuclide tells you how many of each: the bottom number is the proton number, and the top number is the proton-plus-neutron number. Read the target symbol, then build it as a neutral atom.
MissionBuild the target nuclide as a neutral atom.Round 1Streak 0Best 0
How many neutrons does the target nuclide have?
The electrons are already orbiting. Read the target, predict the neutrons, build it, then check.
proton number Z6
nucleon number A = Z + neutrons12
overall chargeneutral
neutrons = A - Z. A neutral atom has equal protons and electrons.