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