Question

group #: 15 nitrogen group → color this family dark blue on the blank table draw the example atom and make the outermost electron(s) in bold. family members (by symbol and atomic #): n 7, p 15, as 33, sb 51, bi 83, mc 115 list 5 uses/existences of the members: 1 2 3 4 5 what does this group include that is similar to the carbon group? nonmetals, metalloids and a metal what are several properties of the pnictogens? go to www.periodictable.com and hover over each of the pnictogens. write down 2 or 3 interesting facts about them: the oxygen group → color this family light green on the blank table group #: draw the example atom and make the outermost electron(s) in bold. family members (by symbol and atomic #): list 5 properties/trends of the members: 1 2 3 4 5 why is oxygen such an important element? what is an allotrope? go to www.periodictable.com and hover over each of the chalcogens. write down 2 or 3 interesting facts about them:

Explanation:

For the nitrogen - group (Group 15):

1. Family Members: N (7), P (15), As (33), Sb (51), Bi (83), Mc (115).
2. Uses/Existences: Nitrogen is used in the production of ammonia for fertilizers. Phosphorus is essential for life and is used in matches. Arsenic has been used historically in pesticides. Antimony is used in alloys. Bismuth is used in cosmetics and some pharmaceuticals.
3. Similarity to Carbon Group: Both groups contain non - metals, metalloids, and metals.
4. Properties of Pnictogens: They have 5 valence electrons. They can form both covalent and ionic compounds. Their electronegativity decreases down the group.
5. Interesting Facts: Nitrogen makes up about 78% of the Earth's atmosphere. Phosphorus glows in the dark (chemiluminescence). Arsenic compounds were once used as medicines.

For the oxygen - group (Group 16):

1. Family Members: O (8), S (16), Se (34), Te (52), Po (84), Lv (116).
2. Properties/Trends: They have 6 valence electrons. Their atomic radius increases down the group. Their electronegativity decreases down the group. They are mostly non - metals (except Po). They can form a variety of compounds with hydrogen and metals.
3. Importance of Oxygen: It is essential for cellular respiration in living organisms. It is also a key component in the formation of water and many organic compounds.
4. Allotrope: An allotrope is a different structural form of the same element. For example, oxygen has two allotropes, dioxygen (O₂) and ozone (O₃).
5. Interesting Facts: Sulfur has been known since ancient times and was used in gunpowder. Selenium is a trace element essential for human health. Tellurium compounds have a garlic - like odor.

Answer:

For Nitrogen - Group:

• Family Members: N (7), P (15), As (33), Sb (51), Bi (83), Mc (115)
• Uses/Existences: Fertilizer production (N), essential for life and in matches (P), historical use in pesticides (As), in alloys (Sb), in cosmetics and pharmaceuticals (Bi)
• Similarity to Carbon Group: Non - metals, metalloids, and metals
• Properties: 5 valence electrons, can form covalent and ionic compounds, electronegativity decreases down the group
• Interesting Facts: Nitrogen in atmosphere (78%), Phosphorus chemiluminescence, Arsenic in medicines

For Oxygen - Group:

• Family Members: O (8), S (16), Se (34), Te (52), Po (84), Lv (116)
• Properties/Trends: 6 valence electrons, atomic radius increases down the group, electronegativity decreases down the group, mostly non - metals, form compounds with hydrogen and metals
• Importance of Oxygen: Essential for cellular respiration, key in water and organic compounds
• Allotrope: Different structural form of same element (e.g., O₂ and O₃)
• Interesting Facts: Sulfur in gunpowder, Selenium for human health, Tellurium has garlic - like odor