A) particles in liquids are still B) particles of matter are in constant motion C) particles in gases vibrate in place D) particles in solids do not move
A) evaporation B) condensation C) vaporization D) sublimation
A) salt B) sand C) Kool-Aid D) sugar
A) metal rusting B) aluminum foil folding C) ice melting D) paper ripping
A) liquid B) solid C) gas D) plasma
A) plastic burning B) water evaporating into water vapor C) reaction between baking soda and vinegar D) apple rotting
A) All helium atoms have 4 protons in its nucleus B) All carbon atoms have exactly 6 protons in its nucleus C) All lithium atoms have 3 neutrons in its nucleus D) It is possible for carbon atoms to have either 6 or 7 protons in its nucleus
A) F B) O C) Ne D) S
A) weight B) density C) bouyancy D) mass
A) a base B) negatively charged C) positively charged D) an acid
A) gas B) solid C) plasma D) liquid
A) N3 B) O2 C) H2 D) NaOH
A) heating the tea B) adding more ice C) stirring the tea D) using powdered sugar instead of sugar cubes
A) Bromine B) Arsenic C) Rhenium D) Bohrium
A) Bohr, Dalton, Rutherford, Thomson B) Dalton, Thomson, Rutherford, Bohr C) Dalton, Thomson, Bohr, Rutherford D) Dalton, Rutherford, Thomson, Bohr
A) Chlorine is in the same family as sulfur, has 18 neutrons in its nucleus and is a nonmetal gas. B) Chlorine has 7 valence electrons, and has 35 protons in its nucleus, and is in period 3. C) The atomic number is 17, the atomic mass (weight) is 35.453, and it (Chlorine) is in the same family as Fluorine. D) Chlorine is in group 17, and has 2 energy levels, and is in the Halogen family.
A) I & At B) Tc & Ru C) Sb & Te D) Na & Mg
A) Particles in liquids flow around each other. B) Particles in gases have lots of energy and move freely. C) Particles in solids vibrate in place. D) Solid particles do not move.
A) element B) compound C) mixture D) chemical change
A) sublimation B) condensation C) vaporization D) evaporation
A) mass number B) atomic mass C) atomic number D) atomic weight
A) He proposed that an atom is a positively charged sphere with electrons embedded in it. B) His model showed electrons moving in specific layers, shells, or orbits. C) He was the first to propose that an atom was mostly empty space. D) He was the first to suggest that different elements have atoms of different masses.
A) Yes B) No
A) Ernest Rutherford B) Niels Bohr C) John Dalton D) J.J. Thomson
A) plum pudding model B) nucleus C) electron cloud D) molecule
A) control B) constant C) dependent variable D) independent variable |