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