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