The sciences Unit 5

THE EASE WITH WHICH ELECTRONS CAN FLOW THROUGH A MATERIAL

PHENOMENOM OF ELECTRONS MOVING THROUGH A METAL COLLIDING WITH IONS OF THAT METAL.  SOME ENERGY IS THEN LOST IN THE COLLISIONS & IS CONVERTED TO FASTER IONIC VIBRATIONS (WE CALL IT HEAT)

BASIC UNIT IS A TRANSISTOR

OPERATES SEQUENTIALLY SOMETIMES PARALLEL BUT NOT LIMITED IN NUMBER

BASIC UNIT IS NERVE CELL

EACH OF TRILLIONS OF CELLS ARE CONNECTED TO THOUSANDS OF SURROUNDING CELLS

HIGHLY CONNECTED-MORE THAN ANY KNOW SYSTEM

WHAT HAPPENS INSIDE THE NUCLEUS IS LARGELY UNRELATED TO THE CHEMISTRY OF THE ATOM

NUCLEAR ACTIVITY NOT DICTATED BY ELECTRONS

DIFFER IN THEIR MASS & ENERGY

DIFFERENT MASSES

NUMBER OF PROTONS + NUMBER OF NEUTRONS = MASS NUMBER

NUCLEI DISINTEGRATE SPONTANEOUSLY

PARTICLES RELEASED INTO SURROUNDING ENVIRONMENT AT HIGH SPEED

THE SPLITTING OF A NUCLEUS

REQUIRES INPUT OF ENERGY

• RELEASES TREMENDOUS AMOUNT OF ENERGY
• EX)  POWER PLANT, NUCLEAR BOMBS

THE COMBINING OF ATOMIC NUCLEI

RESULT OF HIGH SPEED COLLISION OR THE NUCLEI

• FORM ALPHA PARTICLE
• EX)  STARS