Question

The image shows an element with its atomic number and mass number. Which option arranges the element in the periodic table? (a) group – 1; period – 1 (b) group – 5; period – 3 (c) group – 10; period – 1 (d) group – 15; period – 3

Answer 1

Answer:

Answer is option a

because group 1, period 1 is hydrogen