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