Question

. a) what is a period in a periodic table? How do atomic structure change in a period with increases in atomic number from left to right ?​

Answer 1

Answer:

The atomic number increases moving left to right across a period and subsequently so does the effective nuclear charge. Therefore, moving left to right across a period the nucleus has a greater pull on the outer electrons and the atomic radii decreases.

Answer 2

Answer:

a period is a group of elements in amodern perodic table from left to right.

Explanation:

there are 7 periods in the modern periodic table. the atomic structure will shrink as there is greater force of attraction from the nucleus. the atomic size will decrease as we go from left to right.