A) 50 B) 51 C) 23 D) 60
A) 1 B) 3 C) 17 D) 7
A) 5 B) 103 C) 9 D) 45
A) 4 B) 33 C) 15 D) 3
A) Alkaline Metals B) Noble Gases C) Halogens D) Alkaline Earth Metals
A) 7 B) 14 C) 14.007 D) 2
A) 2 B) 56 C) 137 D) 6
A) 1 B) 2 C) 7 D) 6
A) Tellurium is a solid metalloid. B) Chlorine is a liquid non-metal. C) Mercury is a solid metal. D) Phosphorus is a non-metal gas.
A) 96 B) 5 C) 42 D) 6
A) 4 B) 3 C) 2 D) 7
A) Dalton B) Rutherford C) Bohr D) Thomson
A) Dalton B) Rutherford C) Bohr D) Thomson
A) Rutherford B) Bohr C) Thomson D) Dalton
A) Dalton B) Bohr C) Thomson D) Rutherford
A) Dalton, Thomson, Rutherford, Bohr B) Bohr, Rutherford, Dalton, Thomson C) Dalton, Thomson, Bohr, Rutherford 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 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) Argon and Krypton B) Carbon and Boron C) Mercury and Thallium D) Phosphorus and Silicon
A) Electron Cloud B) Rutherford's Model C) Thomson's Model D) Dalton's Model E) Bohr's Model
A) electrons orbit totally randomly around the nucleus B) the atom is mostly empty space C) the atom is a positively charged sphere with electrons embedded in it D) atoms are tiny solid spheres
A) nucleus B) region C) group D) period
A) Magnesium B) Lithium C) Beryllium D) Chlorine
A) Period Number B) Group Number C) Number of Neutrons D) State of Matter
A) number of neutrons B) period number C) number of protons D) group number
A) greater than the mass number B) the mass number minus the atomic number C) the same as the number of electrons D) the same as the number of energy levels
A) State of Matter B) Number of Neutrons C) Period Number D) Group Number
A) Carbon B) Francium C) Nitrogen 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. |