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