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