Which material undergoes radioactive decay? O al elements that have a half life
O all elements that contain atoms with protons
O all elements that have turned into a new element
all elements that have a consistent number of particles

A step by which an unsteady atomic nucleus dissipates its energy by radiation is radioactive decay. Radioactive decay can be alpha, beta or gamma.

The correct answer is:

Option A. elements that have a half-life.

This can be explained by:

Therefore, an element that have a half-life is said to be radioactive.

To learn more about radioactive decay follow the link:

link

The materials which goes radioactive decay have the following property:

A) All elements that have a half life

Explanation:

Half life is a term commonly used in Radiophysics. It can be defined as the time required for one half of the atomic nuclei of an unstable radioactive elements to decay.

For example the radioactive element Cobalt has a half life of 5.26 years, which means if we have a sample which contains 20 grams of Cobalt initially, after 5.26 years, it will reduce to 10 grams.

1. state-issued photo ids. provide them for free for those who can't afford them.

2. the system we have seems to be working nearly perfectly. seems like about 31 cases per billion votes cast

3. the national policy for hiring new employees which requires proof of eligibility to work. there are something like 20 types of identification which can be used for this.

answer; /// the correct answer is (a) burned the city;