A chemist is identifying the elements present in a sample of seawater. What characteristic of an element's atoms always determines the element's identity?

the protons

Explanation:

the number of protons is constant for each sample of the element. If the number of protons differs, then it is a different element.

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".

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