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