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