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