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