A) 50 B) 23 C) 60 D) 51
A) 3 B) 1 C) 7 D) 17
A) 5 B) 45 C) 103 D) 9
A) 15 B) 3 C) 4 D) 33
A) Alkali Metals B) Transition Metals C) Noble Gases D) Halogens E) Alkaline Earth Metals
A) 2 B) 14 C) 14.007 D) 7
A) 137 B) 2 C) 56 D) 6
A) 1 B) 2 C) 7 D) 6
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) 42 B) 6 C) 5 D) 96
A) 4 B) 3 C) 7 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 neutrons B) protons and orbits C) neutrons and electrons D) protons and electrons
A) Carbon and Boron B) Argon and Krypton C) Phosphorus and Silicon D) Mercury and Thallium
A) the atom is a positively charged sphere with electrons embedded in it B) the atom is mostly empty space C) electrons orbit totally randomly around the nucleus D) atoms are tiny solid spheres
A) region B) period C) nucleus D) group
A) Lithium B) Chlorine C) Magnesium D) Beryllium
A) group number B) period number C) number of protons D) number of neutrons
A) the mass number minus the atomic number B) the same as the number of electrons C) the same as the number of energy levels D) greater than the mass 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 electrons B) By adding or losing electrons C) by adding protons D) by losing protons
A) by adding electrons B) by losing electrons C) by losing protons D) by adding protons
A) by losing electrons B) by losing protons C) by adding protons D) by adding electrons
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) difference between the atomic and mass number C) same as the mass number D) same as the atomic 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) Mg and F B) Hg and C C) B and O D) Na and Li
A) F and At B) Mg and Cl C) Li and Po D) Ba and Ra
A) The alkali metals B) The alkali earth metals C) The noble gases D) The transition metals E) The halogens
A) The noble gases B) The alkali metals C) The halogens D) The transition metals
A) 4 B) 18 C) 17 D) 8 E) 1
A) how reactive they are B) how many electrons there are C) how many electron levels there are D) how many protons there are
A) how many valence electrons the atom has B) how many electrons the atom has C) the number of protons D) the number of neutrons
A) Silver B) Sodium C) Iron D) Mercury E) Fluorine
A) H B) Au C) F D) Li E) Al
A) I B) Li C) Al D) Mg E) Cs
A) the number of electrons B) the number of protons C) the number of neutrons
A) Lewis B) Dalton C) Mendeleev D) Bohr E) Newton |