A) 51 B) 50 C) 60 D) 23
A) 3 B) 1 C) 7 D) 17
A) 103 B) 9 C) 5 D) 45
A) 15 B) 33 C) 4 D) 3
A) Transition Metals B) Alkali Metals C) Alkaline Earth Metals D) Halogens E) Noble Gases
A) 7 B) 14 C) 2 D) 14.007
A) 56 B) 137 C) 6 D) 2
A) 1 B) 7 C) 6 D) 2
A) Chlorine is a liquid non-metal. B) Phosphorus is a non-metal gas. C) Mercury is a solid metal. D) Tellurium is a solid metalloid.
A) 42 B) 6 C) 96 D) 5
A) 4 B) 3 C) 7 D) 2
A) proton/-, electron/+, neutron/no charge B) proton/+, electron/-, neutron/uncharged C) proton/+, neutron/-, electron/no charge D) proton/+, electron/neutral, neutron/-
A) protons and orbits B) protons and neutrons C) protons and electrons D) neutrons and electrons
A) Argon and Krypton B) Carbon and Boron C) Phosphorus and Silicon D) Mercury and Thallium
A) the atom is mostly empty space B) the atom is a positively charged sphere with electrons embedded in it C) electrons orbit totally randomly around the nucleus D) atoms are tiny solid spheres
A) nucleus B) period C) group D) region
A) Lithium B) Chlorine C) Magnesium D) Beryllium
A) group number B) number of neutrons C) period number D) number of protons
A) the same as the number of energy levels B) the same as the number of electrons C) greater than the mass number D) the mass number minus the atomic number
A) Period Number B) Group Number C) Number of Neutrons D) State of Matter
A) Carbon B) Manganese C) Francium D) Nitrogen
A) Yes, some Carbon atoms have 6 protons, some have 7 protons. B) No, every single Carbon atom has exactly 6 protons. An atom's atomic number gives it its identity.
A) by adding protons B) by losing protons C) by adding electrons D) By adding or losing electrons
A) by losing electrons B) by losing protons C) by adding electrons D) by adding protons
A) by adding protons B) by adding electrons C) by losing protons D) by losing electrons
A) by adding electrons B) by adding or losing neutrons C) by adding neutrons D) by adding protons
A) mass number divided by 2 B) difference between the atomic and mass number C) same as the atomic number D) same as the mass number
A) the same as the mass number B) the difference between the mass and atomic number C) the same as the number of neutrons D) the same as the atomic number
A) Hg and C B) Na and Li C) Mg and F D) B and O
A) Mg and Cl B) Ba and Ra C) F and At D) Li and Po
A) The alkali metals B) The noble gases C) The alkali earth metals D) The halogens E) The transition metals
A) The alkali metals B) The halogens C) The noble gases D) The transition metals
A) 4 B) 17 C) 18 D) 1 E) 8
A) how many electron levels there are B) how many electrons there are C) how reactive they are D) how many protons there are
A) the number of neutrons B) the number of protons C) how many electrons the atom has D) how many valence electrons the atom has
A) Iron B) Mercury C) Fluorine D) Sodium E) Silver
A) H B) Au C) Al D) Li E) F
A) I B) Li C) Al D) Cs E) Mg
A) the number of neutrons B) the number of electrons C) the number of protons
A) Newton B) Mendeleev C) Bohr D) Dalton E) Lewis |