atoms and elements

Descrição

GCSE Science Mapa Mental sobre atoms and elements, criado por navaz.khansari em 13-04-2015.
navaz.khansari
Mapa Mental por navaz.khansari, atualizado more than 1 year ago Mais Menos
12newtonh
Criado por 12newtonh mais de 9 anos atrás
navaz.khansari
Copiado por navaz.khansari mais de 9 anos atrás
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Resumo de Recurso

atoms and elements
  1. the nucleus
    1. the nucleus is really small compared to the whole atom
      1. its made up of protons and neutrons
      2. the electrons
        1. electrons surrond the nucleus in shells (energy levels)
        2. protons are positive(+)
          1. nuetrons are neutal (not charged)
            1. electrons are negitive (-)
              1. the relative masses of parts of an atom
                1. protons and neutrons have the same mass (e.g.1 each)
                  1. the mass of electrons is much smaller (e.g. very ting)
                  2. there are always be the same number protons as electrons (e.g. 2 positive protons = 2 negitive electrons)
                    1. the number of protons there are dicides what type of atom it is (e.g. hydrogen = 1 proton, helium = 2 protons)

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