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