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