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