A) 51 B) 50 C) 60 D) 23
A) 3 B) 17 C) 7 D) 1
A) 103 B) 45 C) 9 D) 5
A) 33 B) 15 C) 3 D) 4
A) Transition Metals B) Noble Gases C) Halogens D) Alkali Metals E) Alkaline Earth Metals
A) 14 B) 7 C) 14.007 D) 2
A) 137 B) 2 C) 56 D) 6
A) 2 B) 6 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) 96 B) 6 C) 42 D) 5
A) 2 B) 7 C) 4 D) 3
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) Argon and Krypton B) Mercury and Thallium C) Carbon and Boron D) Phosphorus and Silicon
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) group B) nucleus C) region D) period
A) Chlorine B) Beryllium C) Lithium D) Magnesium
A) group number B) period number C) number of protons D) number of neutrons
A) the same as the number of energy levels B) the same as the number of electrons C) the mass number minus the atomic number D) greater than the mass number
A) Group Number B) State of Matter C) Period Number D) Number of Neutrons
A) Nitrogen B) Manganese 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 or losing electrons B) by adding electrons C) by losing protons 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 losing protons C) by adding protons D) by adding electrons
A) by adding protons B) by adding or losing neutrons C) by adding neutrons D) by adding electrons
A) mass number divided by 2 B) same as the atomic number C) difference between the atomic and mass number D) same as the mass number
A) the same as the mass number B) the difference between the mass and atomic number C) the same as the atomic number D) the same as the number of neutrons
A) B and O B) Hg and C C) Mg and F D) Na and Li
A) F and At B) Mg and Cl C) Li and Po D) Ba and Ra
A) The noble gases B) The halogens C) The transition metals D) The alkali metals E) The alkali earth metals
A) The transition metals B) The halogens C) The noble gases D) The alkali metals
A) 4 B) 18 C) 1 D) 17 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 electrons the atom has B) the number of protons C) how many valence electrons the atom has D) the number of neutrons
A) Iron B) Silver C) Sodium D) Fluorine E) Mercury
A) Al B) H C) Au D) Li E) F
A) Al B) I C) Li D) Mg E) Cs
A) the number of electrons B) the number of neutrons C) the number of protons
A) Lewis B) Dalton C) Newton D) Bohr E) Mendeleev |