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