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