A) 23 B) 51 C) 50 D) 60
A) 7 B) 3 C) 17 D) 1
A) 9 B) 103 C) 5 D) 45
A) 33 B) 3 C) 15 D) 4
A) Transition Metals B) Halogens C) Noble Gases D) Alkali Metals E) Alkaline Earth Metals
A) 14.007 B) 7 C) 2 D) 14
A) 6 B) 137 C) 56 D) 2
A) 7 B) 2 C) 1 D) 6
A) Phosphorus is a non-metal gas. B) Tellurium is a solid metalloid. C) Mercury is a solid metal. D) Chlorine is a liquid non-metal.
A) 96 B) 42 C) 6 D) 5
A) 7 B) 4 C) 3 D) 2
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 neutrons C) protons and electrons D) neutrons and electrons
A) Carbon and Boron B) Phosphorus and Silicon C) Argon and Krypton D) Mercury and Thallium
A) the atom is a positively charged sphere with electrons embedded in it B) electrons orbit totally randomly around the nucleus C) atoms are tiny solid spheres D) the atom is mostly empty space
A) region B) nucleus C) period D) group
A) Chlorine B) Lithium C) Beryllium D) Magnesium
A) number of neutrons B) number of protons C) group number D) period number
A) greater than the mass number B) the same as the number of energy levels C) the same as the number of electrons D) the mass number minus the atomic number
A) State of Matter B) Group Number C) Number of Neutrons D) Period Number
A) Nitrogen B) Carbon C) Manganese D) Francium
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 losing protons B) by adding protons C) By adding or losing electrons D) by adding electrons
A) by adding protons B) by losing protons C) by losing electrons D) by adding electrons
A) by adding electrons B) by losing protons C) by losing electrons D) by adding protons
A) by adding electrons B) by adding protons C) by adding or losing neutrons D) by adding neutrons
A) same as the atomic number B) difference between the atomic and mass number C) mass number divided by 2 D) same as the mass number
A) the same as the mass number B) the same as the number of neutrons C) the same as the atomic number D) the difference between the mass and atomic number
A) Hg and C B) Na and Li C) Mg and F D) B and O
A) Ba and Ra B) F and At C) Li and Po D) Mg and Cl
A) The alkali earth metals B) The transition metals C) The halogens D) The noble gases E) The alkali metals
A) The alkali metals B) The halogens C) The transition metals D) The noble gases
A) 18 B) 4 C) 8 D) 1 E) 17
A) how many electrons there are B) how many protons there are C) how many electron levels there are D) how reactive they are
A) how many electrons the atom has B) how many valence electrons the atom has C) the number of protons D) the number of neutrons
A) Fluorine B) Iron C) Silver D) Mercury E) Sodium
A) Al B) Li C) H D) F E) Au
A) Al B) I C) Mg D) Li E) Cs
A) the number of neutrons B) the number of electrons C) the number of protons
A) Lewis B) Mendeleev C) Dalton D) Newton E) Bohr |