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