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