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2 years ago

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7. What does the mass for each element on the periodic table represent:

1 answer:

____ [38]2 years ago

8 0

Answer:

A

Explanation:

The mass number (represented by the letter A) is defined as the total number of protons and neutrons in an atom. Consider the table below, which shows data from the first six elements of the periodic table. Consider the element helium. Its atomic number is 2, so it has two protons in its nucleus.

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Bas_tet [7]

Answer:

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3 years ago

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2 years ago

True or false? An organism may play more than one role in a food web

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2 years ago

g modenr vacuum pumps make it easy to attain pressures of the order of in the laboratory. at a preasusure of 6.75 atm and an ord

Ratling [72]

Answer:

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Explanation:

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3 years ago