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