111 Atoms and Elements-Review

Fill in the missing spaces below. ROUND THE ATOMIC MASS! Use APE MAN 9 19 9 10 9 Fill in the blanks by clicking on the blank, then choosing the correct term. Atoms with the same number of protons and electrons (positives and negatives) are considered to be neutralatoms. Protons are found in the nucleusof an atom, while electrons are found in the electron cloud. Neutronsand protons make up the nucleusof an atom. Where is most of an atom's atomic mass? In the nucleus In the electrons cloud Atoms do not have atomic mass It cannot be determined How can you determine an atom's atomic mass? Add the protons and electrons together Add the protons and neutrons together Add the electrons and neutrons together It cannot be determined Which element is pictured below? Hydrogen Helium Lithium Beryllium Boron Which element is pictured below? Sulfur Phosphorus Gallium Magnesium Which element is pictured below? Lithium Helium Neon Hydrogen Which answer correctly lists the particles in a neutral chlorine atom? 17 protons, 18 neutrons, 17 electrons 18 protons, 18 neutrons, 17 electrons 17 protons, 18 electrons, 18 neutrons 18 protons, 17 neutrons,18 electrons Fill in the missing spaces. Round the atomic mass! 3 7 3 4 3 Match the subatomic particles with their charge and mass. protons positive, 1 amu neutrons neutral, 1 amu electrons negative, 0 amu What element contains 16 protons? Sulfur Oxygen Chlorine Potassium Electrons are found inside the nucleus and have a negative charge. True False