describing periods on the periodic table\nwhich statement accurately compares the trends in atomic number…

describing periods on the periodic table\nwhich statement accurately compares the trends in atomic number and atomic mass in the periodic table?\nthe atomic number increases from left to right, while the atomic mass increases from right to left.\nthe atomic mass increases from left to right, while the atomic number increases from right to left.\nboth the atomic mass and the atomic number increase from left to right.\nboth the atomic mass and the atomic number increase from right to left.

describing periods on the periodic table\nwhich statement accurately compares the trends in atomic number and atomic mass in the periodic table?\nthe atomic number increases from left to right, while the atomic mass increases from right to left.\nthe atomic mass increases from left to right, while the atomic number increases from right to left.\nboth the atomic mass and the atomic number increase from left to right.\nboth the atomic mass and the atomic number increase from right to left.

Answer

Answer:

C. Both the atomic mass and the atomic number increase from left to right.

Explanation:

Step1: Recall periodic - table trends

In the periodic table, elements are arranged in order of increasing atomic number. As we move from left to right across a period, the atomic number increases because the number of protons in the nucleus increases.

Step2: Analyze atomic - mass trend

The atomic mass also generally increases from left to right across a period. This is because as the atomic number increases, the number of protons and neutrons in the nucleus (which contribute to the atomic mass) usually increases as well.