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