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