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