An important absolute dating measure is the decay of 147sm to 143nd. what type of radioactive decay is involved in this parent-daughter pair?

The correct answer is alpha decay. 147Sm is a long lived isotope that primarily decays by alpha decay. Alpha decay is a type of radioactive decays at which an atomic nucleus emit an helium nucleus. As a consequence the resultant mass number is reduced by four units and the atomic number is reduced by two units.

the answer is "alpha decay"

Explanation:

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a.   it resulted in widespread unemployment.

map scale refers to the relationship (or ratio) between distance on a map and the corresponding distance on the ground. for example, on a 1: 100000 scale map, 1cm on the map equals 1km on the ground.