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