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