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