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