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