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