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