Atomic number is the number of protons of an atom. And, given that the atoms are electrically neutral and the charge of one proton is equal to the charge of one electron, the number of electrons is equal to the number of protons. So the neutral atom of sodium has 11 protons and 11 electrons. But, the sodium ion (Na+) has one positive charge, that means that it has lost one negative charge or one electron. Then, the sodium ion (Na+) has 11 - 1 = 10 electrons. <span>Then, the answer is that there are 10 electrons in a sodium ion.
hope this helps :3</span>
Answer:
RNA.
Explanation:
RNA is present as genetic material in some viruses only. RNA is almost similar to DNA in its basic structure but contains oxyribose sugar and uracil instead of deoxyribose sugar and thymine.
According to RNA world hypothesis, RNA is the first genetic material evolved on earth. The RNA has the ability to store information as can be seen in process of transcription and translation. The ribozyme has the ability to acts as the enzyme. Hence, RNA has both ability to store information and catalyze the reaction.
Thus, the correct answer is option (E).
I believe it is 5..hope I helped:)
They get the way they are through ecological succession<span>.
So therefore, A.</span>
Answer:
They are both going to phase change in a short time.
