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