Answer: By definition, if the atomic number =
7
, then there are 7 protons, 7 electrons, and 8 neutrons!
Explanation:
The atomic number is by definition the number of protons, positively charged particles, contained within the atomic nucleus. So if there are 7 protons, there MUST be 7 electrons, 7 negatively charged particles. Why? Because matter is electrically neutral, and positive and negative particles must be equal.
Electrons have negligible mass; the mass number depends on the number of protons contained within the nucleus, PLUS the number of neutrons. Given that we have 15 N
, there must be 8 neutrons contained within the nucleus. does this help?
Answer:
i hope it will help u bestie
Explanation:
Each year, many people look forward to the winter solstice, which usually falls on December 21 and is the shortest day of the year, because they know after that, there will be progressively more daylight each day.
Answer:
Acids and bases that are completely ionized when dissolved in water are called strong acids and strong bases There are only a few strong acids and bases, and everyone should know their names and properties. These acids are often used in industry and everyday life
Explanation:
A weak acid will react with a strong base to form a basic (pH > 7)
DNA is double stranded describes the difference between DNA and RNA.
<u>Explanation:</u>
Deoxyribonucleic acid refers to DNA stands for and ribonucleic acid refers to RNA. Information related to genes is carried by both RNA and DNA. Although they are similar in this way there are many differences that exists between them.
Sugar deoxyribose is contained in DNA whereas the sugar ribose is the content of RNA. Double-stranded molecule is DNA whereas while single-stranded molecule is RNA. In alkaline conditions DNA is stable but RNA is not stable. B-form double helix is the structural feature of DNA. A-form helix structural feature of RNA.
