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