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