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