Question

the illustration below, taken from the periodic table, provides information about the element calcium (ca). 20 ca calcium 40 078 where would the element with atomic number 19 be placed on the periodic table? a. to the right of calcium b. above calcium c. below calcium d. to the left of calcium

Explanation:

Step1: Understand periodic - table order

Elements are arranged in the periodic table in order of increasing atomic number.

Step2: Compare atomic numbers

Calcium has an atomic number of 20. The element with an atomic number of 19 has a lower atomic number than calcium.

Step3: Determine position

In the periodic table, elements with lower atomic numbers are placed to the left of elements with higher atomic numbers in the same period.

Answer:

D. to the left of calcium