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