A) 60 B) 23 C) 51 D) 50
A) 17 B) 1 C) 7 D) 3
A) 103 B) 5 C) 45 D) 9
A) 33 B) 3 C) 4 D) 15
A) Noble Gases B) Alkaline Metals C) Halogens D) Alkaline Earth Metals
A) 7 B) 2 C) 14.007 D) 14
A) 6 B) 137 C) 2 D) 56
A) 1 B) 7 C) 6 D) 2
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) 6 B) 42 C) 96 D) 5
A) 4 B) 3 C) 2 D) 7
A) Dalton B) Rutherford C) Bohr D) Thomson
A) Thomson B) Dalton C) Bohr D) Rutherford
A) Thomson B) Dalton C) Rutherford D) Bohr
A) Bohr B) Dalton C) Rutherford D) Thomson
A) Dalton, Rutherford, Thomson, Bohr B) Bohr, Rutherford, Dalton, Thomson C) Dalton, Thomson, Rutherford, Bohr D) Dalton, Thomson, Bohr, Rutherford
A) proton = positive, electron = neutral, neutron = negative B) proton = positive, electron = negative, neutron = uncharged C) proton = negative, electron = positive, neutron = no charge D) proton = positive, neutron = negative, electron = no charge
A) physical property B) physical change C) chemical property D) chemical change
A) protons and orbits B) neutrons and electrons C) protons and neutrons D) protons and electrons
A) Carbon and Boron B) Phosphorus and Silicon C) Argon and Krypton D) Mercury and Thallium
A) Bohr's Model B) Thomson's Model C) Electron Cloud D) Rutherford's Model E) Dalton's Model
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) group C) period D) region
A) Beryllium B) Chlorine C) Magnesium D) Lithium
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) the same as the number of energy levels B) the mass number minus the atomic number C) the same as the number of electrons D) greater than the mass number
A) State of Matter B) Number of Neutrons C) Group Number D) Period 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. |