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