A long thin sample of a substance is easily bent. When the substance is placed in a n electric circuit and the switch is closed, and LED light turns on. What type of bonding holds the particles of the substance together?

A metallic bonding holds the particles of the substance together

Explanation:

The unknown substance is a metal:

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.

colorless gas, exhibiting a blue glow when placed in an electric field

b) solid

its a type of rock