Arrange the following elements in order of increasing electronegativity:

O, F, N, C, B

Which are examples of how technology has advanced scientific understanding.1using hot water to sterilize medical equipment.2transplanting a human organ into another individual.3inserting genes from one sheep into another cell to make a cloneunderstanding the different structures that make up a cell.4examining microorganisms from the deepest parts of the ocean

Which of these is a physical property

Describe the forces both attractive and repulsive that occur as two atoms move closer together.