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