A) 51 B) 60 C) 50 D) 23
A) 7 B) 17 C) 3 D) 1
A) 9 B) 45 C) 5 D) 103
A) 3 B) 4 C) 15 D) 33
A) Alkaline Earth Metals B) Noble Gases C) Alkaline Metals D) Halogens
A) 14 B) 7 C) 14.007 D) 2
A) 6 B) 2 C) 56 D) 137
A) 1 B) 7 C) 2 D) 6
A) Mercury is a solid metal. B) Phosphorus is a non-metal gas. C) Tellurium is a solid metalloid. D) Chlorine is a liquid non-metal.
A) 6 B) 96 C) 42 D) 5
A) 4 B) 2 C) 3 D) 7
A) Thomson B) Bohr C) Rutherford D) Dalton
A) Rutherford B) Thomson C) Bohr D) Dalton
A) Rutherford B) Bohr C) Dalton D) Thomson
A) Thomson B) Rutherford C) Bohr D) Dalton
A) Dalton, Thomson, Rutherford, Bohr B) Bohr, Rutherford, Dalton, Thomson C) Dalton, Thomson, Bohr, Rutherford D) Dalton, Rutherford, Thomson, Bohr
A) proton = positive, electron = negative, neutron = uncharged B) proton = negative, electron = positive, neutron = no charge C) proton = positive, neutron = negative, electron = no charge D) proton = positive, electron = neutral, neutron = negative
A) physical change B) chemical change C) physical property D) chemical property
A) protons and orbits B) protons and electrons C) neutrons and electrons D) protons and neutrons
A) Mercury and Thallium B) Argon and Krypton C) Phosphorus and Silicon D) Carbon and Boron
A) Bohr's Model B) Thomson's Model C) Dalton's Model D) Electron Cloud E) Rutherford's Model
A) electrons orbit totally randomly around the nucleus B) atoms are tiny solid spheres C) the atom is a positively charged sphere with electrons embedded in it D) the atom is mostly empty space
A) period B) nucleus C) region D) group
A) Lithium B) Magnesium C) Chlorine D) Beryllium
A) Group Number B) Period Number C) State of Matter D) Number of Neutrons
A) group number B) number of protons C) number of neutrons D) period number
A) the mass number minus the atomic number B) the same as the number of electrons C) the same as the number of energy levels D) greater than the mass number
A) Number of Neutrons B) State of Matter C) Period Number D) Group Number
A) Manganese B) Nitrogen C) Carbon D) Francium
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. |