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