A) 23 B) 50 C) 51 D) 60
A) 1 B) 3 C) 7 D) 17
A) 5 B) 45 C) 103 D) 9
A) 4 B) 15 C) 33 D) 3
A) Alkali Metals B) Noble Gases C) Halogens D) Transition Metals E) Alkaline Earth Metals
A) 14 B) 7 C) 14.007 D) 2
A) 56 B) 6 C) 2 D) 137
A) 1 B) 2 C) 7 D) 6
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) 6 B) 96 C) 42 D) 5
A) 3 B) 4 C) 2 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) protons and neutrons B) protons and orbits C) protons and electrons D) neutrons and electrons
A) Argon and Krypton B) Carbon and Boron C) Mercury and Thallium D) Phosphorus and Silicon
A) the atom is mostly empty space B) electrons orbit totally randomly around the nucleus C) atoms are tiny solid spheres D) the atom is a positively charged sphere with electrons embedded in it
A) nucleus B) period C) group D) region
A) Magnesium B) Beryllium C) Chlorine D) Lithium
A) group number B) period number C) number of neutrons D) number of protons
A) the mass number minus the atomic number B) the same as the number of electrons C) the same as the number of energy levels D) greater than the mass number
A) Period Number B) Group Number C) Number of Neutrons D) State of Matter
A) Manganese B) Nitrogen C) Carbon 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 adding or losing electrons B) by adding electrons C) by adding protons D) by losing protons
A) by losing electrons B) by adding protons C) by losing protons D) by adding electrons
A) by adding protons B) by losing protons C) by losing electrons D) by adding electrons
A) by adding or losing neutrons B) by adding protons C) by adding electrons D) by adding neutrons
A) same as the atomic number B) difference between the atomic and mass number C) same as the mass number D) mass number divided by 2
A) the same as the mass number B) the same as the atomic number C) the same as the number of neutrons D) the difference between the mass and atomic number
A) Hg and C B) Na and Li C) B and O D) Mg and F
A) F and At B) Ba and Ra C) Mg and Cl D) Li and Po
A) The noble gases B) The alkali metals C) The halogens D) The alkali earth metals E) The transition metals
A) The noble gases B) The transition metals C) The halogens D) The alkali metals
A) 4 B) 17 C) 18 D) 8 E) 1
A) how reactive they are B) how many electron levels there are C) how many protons there are D) how many electrons there are
A) the number of neutrons B) how many valence electrons the atom has C) the number of protons D) how many electrons the atom has
A) Fluorine B) Mercury C) Silver D) Iron E) Sodium
A) Al B) Au C) Li D) F E) H
A) Li B) Mg C) Al D) Cs E) I
A) the number of electrons B) the number of neutrons C) the number of protons
A) Mendeleev B) Dalton C) Newton D) Bohr E) Lewis |