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