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