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