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