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