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