High School

Elements of each group in the periodic table have certain characteristic properties. Match each group to the correct property. Refer to the periodic table if you need help.

- Metal
- Metalloid
- Nonmetal
- Unknown

Example Elements from Groups:

1. H (Hydrogen) - Nonmetal
2. He (Helium) - Nonmetal
3. Li (Lithium) - Metal
4. Be (Beryllium) - Metal
13. Al (Aluminum) - Metal
14. Si (Silicon) - Metalloid
15. P (Phosphorus) - Nonmetal
16. S (Sulfur) - Nonmetal
17. Cl (Chlorine) - Nonmetal
18. Ar (Argon) - Nonmetal

Lanthanides and Actinides (elements typically below the main periodic table):
- Examples: Ce (Cerium), Pr (Praseodymium) - Metals

Transition Metals:
- Examples: Fe (Iron), Ni (Nickel), Cu (Copper) - Metals

Each group in the periodic table shares similar properties across periods, which allows for classification into metals, metalloids, nonmetals, and other categories based on their characteristics.

Answer :

Sure! Let's match each group in the periodic table with its characteristic properties:

1. Group 1: Alkali Metals
- Elements in this group are metals. They are highly reactive, especially with water, and are found in nature only in compounds. Examples include lithium (Li), sodium (Na), and potassium (K).

2. Group 2: Alkaline Earth Metals
- These elements are also metals. They are reactive, but not as much as the alkali metals. Examples include beryllium (Be), magnesium (Mg), and calcium (Ca).

3. Group 13: Boron Group
- This group includes a mix of metals and a metalloid. Boron (B) is a metalloid, while aluminum (Al), gallium (Ga), indium (In), and thallium (Tl) are metals.

4. Group 14: Carbon Group
- Contains a variety, including a nonmetal (carbon, C), metalloids (silicon, Si, and germanium, Ge), and metals (tin, Sn, and lead, Pb).

5. Group 15: Nitrogen Group
- Includes nonmetals (nitrogen, N, and phosphorus, P), a metalloid (arsenic, As), and metals (antimony, Sb, and bismuth, Bi).

6. Group 16: Oxygen Group
- Mostly consists of nonmetals (oxygen, O, sulfur, S, and selenium, Se), with some metalloids (tellurium, Te, and polonium, Po).

7. Group 17: Halogens
- These are all nonmetals. The halogens are very reactive and include fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At).

8. Group 18: Noble Gases
- Composed entirely of nonmetals. These elements are known for being very stable and not reactive under normal conditions. They include helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn).

These groupings help understand the general properties and chemical behavior of elements in each group. If you have any questions or need more clarification, feel free to ask!