To determine the period of Zn (zinc) in the periodic table, we need to understand the concept of periods in the periodic table.
1. The periodic table is organized in rows called periods and columns called groups.
2. Each period indicates the number of electron shells that the elements in that row have.
3. Zn (zinc) is located with the atomic number 30.
Based on the organization of the periodic table:
1. The first period has 2 elements, hydrogen (H) and helium (He), indicating that elements in this period have electrons in 1 shell.
2. The second period has 8 elements from lithium (Li) to neon (Ne), where these elements have electrons in 2 shells.
3. The third period also has 8 elements, from sodium (Na) to argon (Ar), with electrons in 3 shells.
4. The fourth period starts with potassium (K) and ends with krypton (Kr) and contains 18 elements, where these elements have electrons in 4 shells.
Zn (zinc), with an atomic number of 30, lies in the fourth period.
Therefore, Zn (zinc) is in:
D. Period 4
