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