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