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