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