A) 51 B) 50 C) 60 D) 23
A) 7 B) 17 C) 3 D) 1
A) 5 B) 103 C) 45 D) 9
A) 3 B) 4 C) 15 D) 33
A) Alkaline Earth Metals B) Halogens C) Noble Gases D) Alkali Metals E) Transition Metals
A) 2 B) 7 C) 14 D) 14.007
A) 56 B) 2 C) 137 D) 6
A) 1 B) 6 C) 7 D) 2
A) Phosphorus is a non-metal gas. B) Chlorine is a liquid non-metal. C) Mercury is a solid metal. D) Tellurium is a solid metalloid.
A) 6 B) 5 C) 42 D) 96
A) 2 B) 4 C) 3 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 electrons B) neutrons and electrons C) protons and orbits 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) the atom is a positively charged sphere with electrons embedded in it C) atoms are tiny solid spheres D) electrons orbit totally randomly around the nucleus
A) group B) region C) nucleus D) period
A) Magnesium B) Chlorine C) Beryllium D) Lithium
A) number of protons B) period number C) number of neutrons D) group number
A) the same as the number of energy levels B) greater than the mass number C) the mass number minus the atomic number D) the same as the number of electrons
A) Period Number B) Number of Neutrons C) Group Number D) State of Matter
A) Manganese B) Francium C) Nitrogen D) Carbon
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 protons C) by adding electrons D) by losing protons
A) by adding protons B) by adding electrons C) by losing protons D) by losing electrons
A) by losing electrons B) by losing protons C) by adding electrons D) by adding protons
A) by adding neutrons B) by adding protons C) by adding or losing neutrons D) by adding electrons
A) difference between the atomic and mass number B) same as the atomic number C) mass number divided by 2 D) same as the mass number
A) the same as the mass number B) the difference between the mass and atomic number C) the same as the atomic number D) the same as the number of neutrons
A) Hg and C B) B and O C) Na and Li D) Mg and F
A) F and At B) Li and Po C) Mg and Cl D) Ba and Ra
A) The alkali metals B) The halogens C) The alkali earth metals D) The noble gases E) The transition metals
A) The transition metals B) The noble gases C) The halogens D) The alkali metals
A) 4 B) 18 C) 8 D) 17 E) 1
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) the number of neutrons B) the number of protons C) how many electrons the atom has D) how many valence electrons the atom has
A) Silver B) Sodium C) Mercury D) Fluorine E) Iron
A) Al B) Li C) F D) Au E) H
A) Cs B) Al C) Mg D) Li E) I
A) the number of protons B) the number of neutrons C) the number of electrons
A) Lewis B) Dalton C) Newton D) Bohr E) Mendeleev |