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