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2 years ago

Group 4A (or 14) elements have _________ electrons in their valence shell. A. 2 B. 3 C. 4 D. 5

Chemistry

2 answers:

pashok25 [27]2 years ago

8 0

The carbon group has 4 valence electrons

joja [24]2 years ago

7 0

Answer: Option (C) is the correct answer.

Explanation:

Elements of group 4A include carbon, silicon, germanium, tin and lead.

Also, it is known that valence shell is the shell which is present in the outermost side of an element.

Hence, the electrons present in this outermost shell are known as valence electrons.

For example, atomic number of carbon is 6 and its electronic configuration is $1s^{2}2s^{2}2p^{2}$ .

This means that there are 4 electrons present in the outermost shell.

Thus, we can conclude that group 4A (or 14) elements have 4 electrons in their valence shell.

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Which of the following statements best describes why carbon can form a variety of organic compounds? Carbon atoms bond readily w

olga_2 [115]

Answer:
Carbon readily forms covalent bonds with other carbon atoms.

Explanation:
As we know approximately more than 95 % compounds, either isolated, discovered or synthesized belongs to organic compounds containing carbon atoms.
This great diversity of organic compounds is due to following facts.

1) Catenation:
Carbon has a peculiar behavior of self linkage. This self linkage of one carbon with another is called as catenation. In this way carbon can form a long chain of carbon atom. A branching can also take place when one carbon is bonded further to three of four carbon atoms.

2) Isomerism:
Secondly the carbon containing compounds show isomerism. In which molecular formula is same but structural formula is different. For example molecular formula C₅H₁₂ can make following compounds,

a) n-Pentane

b) 2-Methylbutane

c) 2,2-Dimethylpropane

3) Multiple Bonds:
Carbon can form multiple bonds i.e double bond like in alkenes and triple bonds like in alkyne.

Due to these factors carbon gets very high number of opportunities to form large number of compounds.

7 0

3 years ago

Clo3− draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons. Show t

Karo-lina-s [1.5K]

The formal charges of all nonhydrogen atoms are -1.

Solution:-

O 7-4 = 3 O Double bond on one H 5-4 = 1

O-Cl-O 6-7 = -1x4 = -4 N 5-4=1 H-N-H 1-1=0

O 3-4= -1 O O 6-7 = -1(2)=-2 H 1-0=+1

6-6 = 0 1-2 = -1

It will percentage its last valence electron thru a single bond to the terminal oxygen atom. This is in agreement with carbon and hydrogen atoms that each need to form 4 and 1 covalent bonds respectively. because the terminal oxygen atom best has a single covalent bond, it'll have a proper rate of -1.

According to the lewis structure of SO2, The critical atom is sulfur and it is bonded with 2 oxygen atoms thru a double bond. each oxygen atom acquires 2 lone pairs of electrons and the primary sulfur atom has 1 lone pair of electrons.

Learn more about Nonhydrogen atoms here:-brainly.com/question/2822744

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1 year ago

The compound, nah2po4, is present in many baking powders. what is its name? sodium phosphate sodium bephosphate sodium dihydroge

AlladinOne [14]

The compound NaH2PO4 name is

sodium dihydrogen phosphate

Explanation
This name is arrived at by using the IUPAC rules of naming compound

1. the metal (sodium)is named first followed by the ligand ( hydrogen and phosphate)

Ligand are molecules that are attached to the metal center.

2. ligand are named using alphabetical order(for our case h for hydrogen come before p for phosphate hence hydrogen is named first)

3. Prefix di is used since hydrogen are two

hence the name of the compound is Sodium dihydrogen phosphate

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2 years ago

A boy jumps into a cold swimming pool and his body temperature goes down. His muscles, blood vessels, and nervous system work to

mixas84 [53]

Answer:

balance

Explanation:

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2 years ago

If a small pig runs 46 meters in 6 seconds, what is the pig's average speed?

Tamiku [17]

Answer:

the pig's average speed is 7 m/s

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2 years ago