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