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