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