Atoms and Elements

Master atoms and elements! Practice atomic structure, particles, and identification.

Fill in the missing spaces below. ROUND THE ATOMIC MASS! Use APE MAN 9 19 9 10 9 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 Use your "Atomic Structure Notes notes to fill in the blanks below. The small, dense region consisting of protons and neutrons at the center of an atom. The majority of an atom's mass is located in the nucleus. To mark a word click its first letter then click its last. PERIODICTABLE ATOMICNUMBER ATOMICMASS POSITIVE ELECTRON ELEMENT NUCLEUS NEUTRON NEUTRAL PERIOD PROTON FAMILY GROUP SHELL ATOM