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