Which of the following is a period 4 representative element?
O A. C
O B. An
O C. Ti
O D. K
- Carbon (from Latin: carbo "coal") is a chemical element with the symbol C and atomic number 6. It is nonmetallic and tetravalen - making four electrons available to form covalent chemical bonds. It belongs to group 14 of the periodic table. Carbon makes up only about 0.025 percent of Earth's crust.
#CarryOnLearning
#LetsEnjoyTheSummer
<h3>→XxKim02xX</h3>
Answer:
e. None of the answer choices
Explanation:
- The solvents used for 1HNMR analysis are chloroform D (CDCl3), and acetone D6 (CD3COCD3) and deuterium oxide (D2O).
- And here any of these three nans are listed in the given option so that we can say that none of the answers are correct.
- so correct answer is e. None of the answer choices
Answer:
The human cheek cell is a good example of a typical animal cell. It has a prominent nucleus and a flexible cell membrane which gives the cell its irregular, soft-looking shape.
