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