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