1) Which of the following does the nucleus contain? a) protons and electrons b) protons and neutrons c) neutrons and electrons 2) Which of the following statements is correct? a) Protons have a positive charge and neutrons are negative b) Protons have a negative charge and electrons are positive c) Protons have a positive charge and electrons are negative 3) A neutron has what charge? a) no charge b) positive c) negative 4) What is the mass of an electron? a) 1 b) -1 c) 1/1840 5) What is the charge of an electron? a) +1 b) -1 c) 0 6) What is the charge of a proton? a) +1 b) -1 c) 0 7) What is the name of the particle labelled A? a) Proton b) Electron c) Neutron 8) What name is given to the middle part of an atom? a) Nucleus b) Cell c) Brain 9) If a charged atom (ion) gains an electron, what charge does it now have? a) positive b) negative c) no charge

Atomic structure quiz

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