Which element do you expect to be most like magnesium? why?
a.) potassium
b.) silver
c.) bromine
d.) calcium
e.) lead

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

An object displaces 652 ml of water. the volume of the object is: 0.652 cm³ 6.52 cm³ 65.2 cm³ 652 cm³

At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver