Chemistry

The ion of aluminum is ________.

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The number of electrons in an ion with 16 protons and an ionic charge of 2- is ________.

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To form an ion, a sodium atom ________.

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How many electrons will aluminum gain or lose when it forms an ion?

Started by mrsjacobs44

In nuclear fusion, a large atom splits into smaller atoms.

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CT scans are based on the adsorption of X-rays.

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One type of radiation that is not used for medical procedures is the cosmic ray.

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After two half-lives, the activity of a sample is four times the initial activity.

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The rem is a unit that measures the biological effect of radiation.

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One mCi of a radioactive substance emits more radiation than one Ci of the same substance.

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When Ra-226 undergoes alpha decay, an atom of lead is also produced.

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When beta particles are emitted, the atomic number decreases.

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During alpha emission, the atomic number decreases.

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The correct symbol for hydrogen-3 is He.

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The combination of H-3 and H-2 to give He-4 and a neutron is called nuclear ________.

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The diagnostic imaging technique that depends on magnetic fields and radio waves, not radioactivity, ...

Started by ENagel

After two half-lives, the radioactivity of a sample is ________ of its original activity.

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There are ________ microcuries in one millicurie.

Started by Capo

U + n ________ + Kr + 3n + energy

Started by mwit1967

In beta emission, the atomic number ________.

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The shielding required for gamma rays is ________.

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In the sun, nuclei of hydrogen combine to form a larger nucleus and release a great amount of ...

Started by future617RT

The recommended dosage of I-131 for a test is 4.2 Ci per kg of body mass. How many millicuries ...

Started by mia

A sample of cerium-141 for a diagnostic test was dissolved in saline solution to an activity of 4.5 ...

Started by daltonest1984

A patient receives 3.0 mL of a solution containing technetium-99m for a breast image. If the ...

Started by rosent76