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