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