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