Question

group #: 2
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 boiling points range from 1457°c to 2550°c
2 stable covalent compounds
3 dandy textures
4
5
what are two types of elements included in this group?
aluminum, thallium
what are several general uses of the icosagens?
melting points
go to www.periodictable.com and hover over each of the icosagens. write down 2 or 3 interesting facts about them:
the carbon group
group #:
draw the example atom and make the outermost electron(s) in bold.
family members (by symbol and atomic #):
list 5 uses/existences of the members:
1
2
3
4
5
why are carbon and silicon especially relevant to us?
what are several properties of the crystallogens?

Explanation:

Step1: Identify group number for carbon group

The carbon group is Group 14 in the periodic - table.

Step2: List family members

Carbon (C, 6), Silicon (Si, 14), Germanium (Ge, 32), Tin (Sn, 50), Lead (Pb, 82), Flerovium (Fl, 114).

Step3: List uses/existences of members

1. Carbon: Forms the basis of organic compounds, used in fuels (coal, oil, gas).
2. Silicon: Used in semiconductors for electronics, in construction materials like concrete.
3. Germanium: Used in semiconductors, infrared optics.
4. Tin: Used in soldering, in tin - plating to prevent corrosion.
5. Lead: Used in batteries, radiation shielding.

Step4: Explain relevance of carbon and silicon

Carbon is the basis of life on Earth as it can form a vast number of organic compounds. Silicon is important in electronics due to its semiconductor properties and is also a major component of rocks and minerals.

Step5: List properties of crystallogens (carbon - group elements)

1. They have 4 valence electrons.
2. Tend to form covalent bonds.
3. Have a range of physical states from non - metal (carbon) to metal (lead).
4. Have relatively high melting and boiling points.
5. Can exhibit different oxidation states, commonly + 4 and - 4.

Answer:

Group #: 14
Family Members: C (6), Si (14), Ge (32), Sn (50), Pb (82), Fl (114)
Uses/Existences:

1. Carbon - basis of organic compounds, used in fuels.
2. Silicon - in semiconductors, construction materials.
3. Germanium - in semiconductors, infrared optics.
4. Tin - in soldering, tin - plating.
5. Lead - in batteries, radiation shielding.

Relevance of carbon and silicon: Carbon is basis of life, silicon is important in electronics and rocks/minerals.
Properties of crystallogens:

1. 4 valence electrons.
2. Form covalent bonds.
3. Range of physical states.
4. High melting/boiling points.
5. Different oxidation states.