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