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