What characteristics do atoms of manganese- 55, iron-56, and nickel-58 have in common?

Drive down any three characteristic of modern periodic table

If a 12-v battery is connected to a circuit that has a current of 3.0 a, what is the total resistance in the circuit? 36 ohms 4 ohms 0.25 ohms

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