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