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