Question

using the periodic table provided, identify which of the following is the correct match of atomic mass and atomic number. select the correct answer below: 6.941 amu; 4 22.990 amu; 12 87.62 amu; 38 58.933 amu; 26

Explanation:

Step1: Check lithium

Lithium (Li) has atomic number 3 and atomic - mass approximately 6.941 amu. The given pair 6.941 amu; 4 is incorrect.

Step2: Check sodium

Sodium (Na) has atomic number 11 and atomic - mass approximately 22.990 amu. The given pair 22.990 amu; 12 is incorrect.

Step3: Check strontium

Strontium (Sr) has atomic number 38 and atomic - mass approximately 87.62 amu. This pair is correct.

Step4: Check iron

Iron (Fe) has atomic number 26 and atomic - mass approximately 55.845 amu. The given pair 58.933 amu; 26 is incorrect.

Answer:

C. 87.62 amu; 38