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