The group number on the periodic table is the same as the positive charge for Group of answer choices

1.halogens

2.noble gases

3.alkali-metals

4.transition metals

When the volume and number of particles of a gas are constant which of the following is also constant

The continuous release of nuclear energy caused when one fission reaction triggered more nuclear reactions is a

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space