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