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