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