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