Most Children Use a Spoon Like an Adult by the Time

question 87

Multiple Choice

Most children use a spoon like an adult by the time they are

• A)six months old.
• B)12 months old.
• C)18 months old.
• D)24 months old.

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Definitions:

Radioactive Decay

The process by which an unstable atomic nucleus loses energy by emitting radiation.

Half-life

The time required for half of the atoms in a radioactive substance to undergo decay, a characteristic constant for each radioactive isotope.

Half-life

The time required for half the atoms of a radioactive substance to decay into a stable form.

Cesium-137

A radioactive isotope of cesium with a half-life of about 30.17 years, commonly used in medical applications and industrial gauges.