Answer:
The correct option is: A carbon atom can complete its valence shell by forming four covalent bonds
Explanation:
Carbon is a chemical element that belongs to the group 14 of the periodic table. The atomic number of carbon atom is 6 and it is denoted by the chemical symbol C.
The electronic configuration of carbon is: 1s², 2s², 2p².
Therefore, there are 2 electrons in the first electronic shell and 4 electrons in the second electronic shell of the carbon atom.
<u>There are </u><u>four valence electrons </u><u>in a carbon atom and thus it can form four covalent bonds to complete its valence shell. Therefore, carbon atom is tetravalent.</u>
Answer:
earth works as a system because it has many layers that work together and it has been powered by who different energy forms. It also has an external source (the sun)
Explanation:
Cells that do the same job combine together to form body tissue, such as muscle, skin, or bone tissue. Groups of different types of cells make up the organs in your body, such as your heart, liver, or lungs. Each organ has its own job to do, but all organs work together to maintain your body.
