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