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