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Which of the following general trends are true for the atomic mass of elements in the periodic table? 1. The atomic mass is usually a decimal number. II. The atomic mass is alwa…

Which of the following general trends are true for the atomic mass of elements in the periodic table? 1. The atomic mass is usually a decimal number. II. The atomic mass is alwa…
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Which of the following general trends are true for the atomic mass of elements in the periodic table?

1. The atomic mass is usually a decimal number.
II. The atomic mass is always smaller than the atomic number.
III. The atomic mass increases from top to bottom down a group.
IV. The atomic mass increases from left to right across a period.

HELP PLEASE THERE IS NO PICTURE PLZ JUST LEAVE THE ANSWER!!

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User Discodowney
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5 votes

Answer:

D. the atomic mass increases from left to right

Step-by-step explanation:

answered
User Templatetypedef
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