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