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