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