A) 51 B) 23 C) 60 D) 50
A) 17 B) 7 C) 1 D) 3
A) 5 B) 103 C) 45 D) 9
A) 3 B) 15 C) 4 D) 33
A) Transition Metals B) Halogens C) Alkaline Earth Metals D) Alkali Metals E) Noble Gases
A) 7 B) 14 C) 14.007 D) 2
A) 6 B) 56 C) 137 D) 2
A) 2 B) 7 C) 1 D) 6
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) 5 C) 42 D) 6
A) 2 B) 3 C) 7 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) 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) atoms are tiny solid spheres B) electrons orbit totally randomly around the nucleus C) the atom is a positively charged sphere with electrons embedded in it D) the atom is mostly empty space
A) group B) region C) period D) nucleus
A) Magnesium B) Beryllium C) Lithium D) Chlorine
A) period number B) group number C) number of protons D) number of neutrons
A) the mass number minus the atomic number B) greater than the mass number C) the same as the number of energy levels D) the same as the number of electrons
A) Group Number B) Period Number C) Number of Neutrons D) State of Matter
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 adding electrons B) by adding protons C) by losing protons D) By adding or losing electrons
A) by adding protons B) by losing electrons C) by adding electrons D) by losing protons
A) by losing protons B) by losing electrons C) by adding electrons D) by adding protons
A) by adding neutrons B) by adding or losing neutrons C) by adding protons D) by adding electrons
A) difference between the atomic and mass number B) same as the mass number C) same as the atomic number D) mass number divided by 2
A) the same as the number of neutrons B) the difference between the mass and atomic number C) the same as the atomic number D) the same as the mass number
A) Mg and F B) Hg and C C) Na and Li D) B and O
A) Mg and Cl B) Ba and Ra C) F and At D) Li and Po
A) The transition metals B) The alkali earth metals C) The alkali metals D) The halogens E) The noble gases
A) The alkali metals B) The halogens C) The transition metals D) The noble gases
A) 1 B) 4 C) 8 D) 17 E) 18
A) how many electron levels there are B) how many protons there are C) how reactive they are D) how many electrons there are
A) the number of protons B) the number of neutrons C) how many valence electrons the atom has D) how many electrons the atom has
A) Fluorine B) Mercury C) Sodium D) Iron E) Silver
A) Al B) Li C) Au D) F E) H
A) Cs B) I C) Mg D) Li E) Al
A) the number of neutrons B) the number of protons C) the number of electrons
A) Bohr B) Mendeleev C) Lewis D) Newton E) Dalton |