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