Question
Use the Periodic Table to complete the questions:
How many valence electrons do an atom of silicon (Si) and an atom of Hydrogen (H) have?
Periodic table
(1 point)
Responses
1:4
1:4
4:1
4:1
2:7
2:7
6:1
6:1
Question 2
Silane is a molecule made up of Silicon (Si) and Hydrogen (H).
Use the periodic table, and your knowledge of valence electrons, to determine the chemical formula for this substance.
(1 point)
Responses
SiH4
SiH4
H2
SO4
H2SO4
Si2
H4
Si2H4
SiH
SiH
Question 3
What type of bonds are formed between silicon (Si) and hydrogen (H)?(1 point)
Responses
nuclear
nuclear
Ionic
Ionic
Covalent
Covalent
Polar
Polar
Question 4
Table of electronegativities of the elements.
Looking at the electronegativities of silicon and hydrogen, what can you determine about their electronegativities?
(1 point)
Responses
The values of their electronegativities are similar.
The values of their electronegativities are similar.
Silicon has half the electronegativity of hydrogen.
Silicon has half the electronegativity of hydrogen.
Silicon has twice the electronegativity of hydrogen.
Silicon has twice the electronegativity of hydrogen.
The values of their electronegativities are extremely far apart.
The values of their electronegativities are extremely far apart.
Skip to navigation
How many valence electrons do an atom of silicon (Si) and an atom of Hydrogen (H) have?
Periodic table
(1 point)
Responses
1:4
1:4
4:1
4:1
2:7
2:7
6:1
6:1
Question 2
Silane is a molecule made up of Silicon (Si) and Hydrogen (H).
Use the periodic table, and your knowledge of valence electrons, to determine the chemical formula for this substance.
(1 point)
Responses
SiH4
SiH4
H2
SO4
H2SO4
Si2
H4
Si2H4
SiH
SiH
Question 3
What type of bonds are formed between silicon (Si) and hydrogen (H)?(1 point)
Responses
nuclear
nuclear
Ionic
Ionic
Covalent
Covalent
Polar
Polar
Question 4
Table of electronegativities of the elements.
Looking at the electronegativities of silicon and hydrogen, what can you determine about their electronegativities?
(1 point)
Responses
The values of their electronegativities are similar.
The values of their electronegativities are similar.
Silicon has half the electronegativity of hydrogen.
Silicon has half the electronegativity of hydrogen.
Silicon has twice the electronegativity of hydrogen.
Silicon has twice the electronegativity of hydrogen.
The values of their electronegativities are extremely far apart.
The values of their electronegativities are extremely far apart.
Skip to navigation
Answers
GPT-4o mini
Let's go through each question one by one:
**Question 1: How many valence electrons do an atom of silicon (Si) and an atom of hydrogen (H) have?**
- Silicon (Si) is in Group 14 of the periodic table and has **4 valence electrons**.
- Hydrogen (H) is in Group 1 of the periodic table and has **1 valence electron**.
Therefore, the correct response is:
**4:1**
---
**Question 2: Silane is a molecule made up of Silicon (Si) and Hydrogen (H). Use the periodic table, and your knowledge of valence electrons, to determine the chemical formula for this substance.**
Silane consists of one silicon atom and four hydrogen atoms. Therefore, the chemical formula is:
**SiH4**
---
**Question 3: What type of bonds are formed between silicon (Si) and hydrogen (H)?**
Silicon and hydrogen form **covalent bonds**, where electrons are shared between the atoms.
So, the correct response is:
**Covalent**
---
**Question 4: Looking at the electronegativities of silicon and hydrogen, what can you determine about their electronegativities?**
Silicon has a moderate electronegativity, while hydrogen has a slightly higher one, but their values are relatively close compared to other elements. Thus, the correct response is:
**The values of their electronegativities are similar.**
---
If you need further assistance or clarification, feel free to ask!
**Question 1: How many valence electrons do an atom of silicon (Si) and an atom of hydrogen (H) have?**
- Silicon (Si) is in Group 14 of the periodic table and has **4 valence electrons**.
- Hydrogen (H) is in Group 1 of the periodic table and has **1 valence electron**.
Therefore, the correct response is:
**4:1**
---
**Question 2: Silane is a molecule made up of Silicon (Si) and Hydrogen (H). Use the periodic table, and your knowledge of valence electrons, to determine the chemical formula for this substance.**
Silane consists of one silicon atom and four hydrogen atoms. Therefore, the chemical formula is:
**SiH4**
---
**Question 3: What type of bonds are formed between silicon (Si) and hydrogen (H)?**
Silicon and hydrogen form **covalent bonds**, where electrons are shared between the atoms.
So, the correct response is:
**Covalent**
---
**Question 4: Looking at the electronegativities of silicon and hydrogen, what can you determine about their electronegativities?**
Silicon has a moderate electronegativity, while hydrogen has a slightly higher one, but their values are relatively close compared to other elements. Thus, the correct response is:
**The values of their electronegativities are similar.**
---
If you need further assistance or clarification, feel free to ask!