All of the following show a periodic pattern except

Chemistry

1 answer:

AlekseyPX3 years ago

4 0

A. the dog ate everyone of his play toys

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vivado [14]

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They are called corpuscles

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The mass number of an element is equal to

klasskru [66]

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The mass number is defined as the total number of protons and neutrons in an atom.

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Calculate the number of neutrons of 239Pu.

MrRissso [65]

145 since it’s the mass number plus protons I think

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ipn [44]

Uranium provides nuclear fuel used generate electricity in nuclear power station,also used by the military to power nuclear submarines and in nuclear weapons.

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3 years ago

Define unit hi hope u have a great day

Crank

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Unit is the quantity of a constant magnitude which is used to measure the magnitudes of other quantities of the same nature. 

Explanation:

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3 years ago