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