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