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