A) 50 B) 23 C) 60 D) 51
A) 7 B) 1 C) 17 D) 3
A) 9 B) 5 C) 103 D) 45
A) 3 B) 33 C) 15 D) 4
A) Alkaline Earth Metals B) Alkaline Metals C) Halogens D) Noble Gases
A) 2 B) 14 C) 14.007 D) 7
A) 56 B) 137 C) 6 D) 2
A) 1 B) 6 C) 7 D) 2
A) Phosphorus is a non-metal gas. B) Mercury is a solid metal. C) Chlorine is a liquid non-metal. D) Tellurium is a solid metalloid.
A) 96 B) 42 C) 5 D) 6
A) 4 B) 3 C) 2 D) 7
A) Rutherford B) Bohr C) Dalton D) Thomson
A) Dalton B) Rutherford C) Thomson D) Bohr
A) Dalton B) Bohr C) Rutherford D) Thomson
A) Dalton B) Bohr C) Thomson D) Rutherford
A) Dalton, Thomson, Rutherford, Bohr B) Dalton, Thomson, Bohr, Rutherford C) Bohr, Rutherford, Dalton, Thomson D) Dalton, Rutherford, Thomson, Bohr
A) proton = positive, electron = negative, neutron = uncharged B) proton = positive, neutron = negative, electron = no charge C) proton = negative, electron = positive, neutron = no charge D) proton = positive, electron = neutral, neutron = negative
A) chemical change B) chemical property C) physical property D) physical change
A) protons and orbits B) protons and neutrons C) protons and electrons D) neutrons and electrons
A) Phosphorus and Silicon B) Argon and Krypton C) Mercury and Thallium D) Carbon and Boron
A) Thomson's Model B) Dalton's Model C) Bohr's Model D) Rutherford's Model E) Electron Cloud
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) nucleus B) period C) region D) group
A) Chlorine B) Beryllium C) Magnesium D) Lithium
A) Number of Neutrons B) State of Matter C) Group Number D) Period Number
A) period number B) number of protons C) number of neutrons D) group number
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) Number of Neutrons B) State of Matter C) Period Number D) Group Number
A) Francium B) Manganese C) Nitrogen 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. |