In a nuclear reaction, the energy released is equal to 5.4 x 1015 joules. calculate the mass lost in this reaction. (1 j = 1 kg m2/s2)
6.0 x 10-2 kg
4.86 x 10-1 kg
1.8 x 10-1 kg
1.62 x 102 kg

Long term exposure to waves can cause sunburns and skin cancer. a) visible b) infrared c) gamma rays d) ultraviole

Ais a mountain created from eruptions of lava, ash, rocks, and hot gases.

Which is a characteristic of the electron sea model for metallic bonding? molecular orbitals overlap to produce bands. electrons flow easily between metal nuclei. electrons are in fixed positions in the orbitals. atomic nuclei are arranged in an irregular pattern.