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