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