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