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