inside atoms

• proton:

  mass = 1 , charge = positive 1 , inside atom
• neutron

  mass = 1 , charge = neutral = 0 , inside an atom
• electron

  mass: 0.005 charge: negative 1 , orbit the outside of the shell
• atoms are neutral because the number of protons are the same as the number of electrons so the positive and negatives cancel out
• pow to calculate pen : protons and electrons are the same ( bottom number) neutrons = top. example : Na, top is 23, bottom is 11. protons : 11 electrons 11 neutrons : 23-11=12
• atom : smallest particle of an element that can exist in the form of a chemical element
• The structure of an atom consists of a nucleus at the center, which contains protons (positively charged particles) and neutrons (neutral particles). Electrons (negatively charged particles) orbit the nucleus in shells or energy levels.
• subatomic particles are neutrons, protons and electrons