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