A) 60 B) 23 C) 50 D) 51
A) 1 B) 17 C) 7 D) 3
A) 103 B) 5 C) 45 D) 9
A) 33 B) 15 C) 4 D) 3
A) Alkaline Earth Metals B) Transition Metals C) Alkali Metals D) Halogens E) Noble Gases
A) 14.007 B) 14 C) 2 D) 7
A) 137 B) 6 C) 2 D) 56
A) 1 B) 2 C) 6 D) 7
A) Tellurium is a solid metalloid. B) Phosphorus is a non-metal gas. C) Chlorine is a liquid non-metal. D) Mercury is a solid metal.
A) 6 B) 5 C) 42 D) 96
A) 7 B) 4 C) 3 D) 2
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 orbits B) neutrons and electrons C) protons and neutrons D) protons and electrons
A) Carbon and Boron B) Argon and Krypton C) Mercury and Thallium D) Phosphorus and Silicon
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) group B) region C) nucleus D) period
A) Beryllium B) Magnesium C) Lithium D) Chlorine
A) group number B) period number C) number of neutrons D) number of protons
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) Period Number C) Group Number D) Number of Neutrons
A) Carbon B) Manganese C) Nitrogen 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 adding or losing electrons B) by adding electrons C) by losing protons D) by adding protons
A) by adding protons B) by losing protons C) by losing electrons D) by adding electrons
A) by losing protons B) by adding electrons C) by adding protons D) by losing electrons
A) by adding neutrons B) by adding electrons C) by adding or losing neutrons D) by adding protons
A) same as the mass number B) same as the atomic number C) mass number divided by 2 D) difference between the atomic and mass number
A) the same as the number of neutrons B) the same as the mass number C) the difference between the mass and atomic number D) the same as the atomic number
A) B and O B) Hg and C C) Na and Li D) Mg and F
A) F and At B) Mg and Cl C) Ba and Ra D) Li and Po
A) The noble gases B) The transition metals C) The alkali earth metals D) The alkali metals E) The halogens
A) The halogens B) The noble gases C) The alkali metals D) The transition metals
A) 8 B) 17 C) 4 D) 1 E) 18
A) how many electrons there are B) how reactive they are C) how many electron levels there are D) how many protons there are
A) how many electrons the atom has B) the number of neutrons C) how many valence electrons the atom has D) the number of protons
A) Silver B) Mercury C) Fluorine D) Sodium E) Iron
A) F B) Li C) H D) Au E) Al
A) Cs B) Al C) I D) Li E) Mg
A) the number of protons B) the number of electrons C) the number of neutrons
A) Dalton B) Newton C) Lewis D) Mendeleev E) Bohr |