1. what are valence electrons? a) empty spaces in the innermost shell of an atom b) electrons in the outermost shell available for bonding c) empty spaces in the outermost shell of an atom d) electrons in the innermost shell available for bonding 2. an atom has an atomic mass of 56amu. the atom has 32 neutrons and 24 electrons. what is the number of the atom? a) 32 b) 24 c) 56 d) 112

The act of moving from one place to another. a. locomotor b. aerobic c. stationary d. static

1which body contains the majority of the mass in the solar system earth jupiter the moon the sun 2 what keeps the objects in the solar system such as planets orbiting around the sun the force of gravity the galaxy exerts on all objects within it including the solar system the great distance between the sun and the planets the sun's nuclear fusion which acts on each object the gravitational force between the sun and each object in the solar system

The field lines around one end of a bar magnet are shown below based on the diagram, what can you conclude about the pole of the magnet? a.is a south pole because the field hnes spread out from this end b.a north pole because the field lines spread out from this end c.a nouth pole because the field lines enter the magnet at this end d.is a north pole because the field lines enter the magnet at this end