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