What is true of electrons? 1. They are negatively charged and located inside the nucleus

2.They are positively changed and located inside the nucleus

3. They are negatively charged and located outside the nucleus

4. They positively changed and located outside the nucleus

Acm ruler with main graduations from 1 to 10 from left to right there are 10 secondary graduations between each of the main graduations there is a line that begins. at the left end of the ruler 10 secondary graduations to the left of the “1 main graduation the right end of the line ends on the eighth secondary graduation to the right of 3 how long is the line