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