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