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