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