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