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