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