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