what are the three categories of the period table?
metal, non metal, and metalloids
what are 5 events that tell you that a physical change has occurs?
bubbles,sound, color,burn, and Oder.
what you call group 17?
what you call group 18?
what you call group 1?
what does the law of conservation said?
The law of conservation of mass.
what is the big number in front of an element ?
what is the formula for speed?
what is the formula for acceleration ?
final speed/time= initial speed
what is the formula for velocity?
velocity+ displacement/ time