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