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