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