An actual measurement of a sample is 3.5m. The measured value is 2.5m. Percent error? *
URGENT

Explanation:

The percentage error of a certain measurement can be found by using the formula

actual measurement = 3.5 m

error = 3.5 - 2.5 = 1

We have

We have the final answer as

Hope this helps you

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

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