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