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