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