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