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