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