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