A) 51 B) 60 C) 50 D) 23
A) 7 B) 17 C) 1 D) 3
A) 103 B) 45 C) 5 D) 9
A) 4 B) 15 C) 33 D) 3
A) Transition Metals B) Halogens C) Alkaline Earth Metals D) Alkali Metals E) Noble Gases
A) 14.007 B) 14 C) 7 D) 2
A) 137 B) 2 C) 6 D) 56
A) 6 B) 2 C) 1 D) 7
A) Phosphorus is a non-metal gas. B) Chlorine is a liquid non-metal. C) Tellurium is a solid metalloid. D) Mercury is a solid metal.
A) 96 B) 6 C) 5 D) 42
A) 7 B) 2 C) 3 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) neutrons and electrons B) protons and orbits C) protons and electrons D) protons and neutrons
A) Mercury and Thallium B) Argon and Krypton 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) the atom is mostly empty space D) electrons orbit totally randomly around the nucleus
A) region B) nucleus C) period D) group
A) Beryllium B) Lithium C) Magnesium D) Chlorine
A) number of neutrons B) group number C) number of protons D) period number
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) Group Number D) Period Number
A) Carbon B) Francium C) Nitrogen D) Manganese
A) No, every single Carbon atom has exactly 6 protons. An atom's atomic number gives it its identity. B) Yes, some Carbon atoms have 6 protons, some have 7 protons.
A) by losing protons B) by adding protons C) by adding electrons D) By adding or losing electrons
A) by adding protons B) by losing protons C) by adding electrons D) by losing electrons
A) by adding protons B) by losing protons C) by losing electrons D) by adding electrons
A) by adding electrons B) by adding or losing neutrons C) by adding protons D) by adding 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 same as the mass number B) the difference between the mass and atomic number C) the same as the atomic number D) the same as the number of neutrons
A) Hg and C B) Mg and F C) Na and Li D) B and O
A) F and At B) Mg and Cl C) Li and Po D) Ba and Ra
A) The halogens B) The alkali metals C) The alkali earth metals D) The noble gases E) The transition metals
A) The alkali metals B) The noble gases C) The halogens D) The transition metals
A) 4 B) 1 C) 18 D) 17 E) 8
A) how reactive they are B) how many protons there are C) how many electron levels there are D) how many electrons there are
A) the number of protons B) how many electrons the atom has C) how many valence electrons the atom has D) the number of neutrons
A) Silver B) Iron C) Fluorine D) Mercury E) Sodium
A) Au B) F C) Al D) H E) Li
A) Cs B) Li C) I D) Al E) Mg
A) the number of electrons B) the number of protons C) the number of neutrons
A) Newton B) Dalton C) Mendeleev D) Lewis E) Bohr |