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