1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sveticcg [70]
4 years ago
14

Consider an atom of gold in which the nucleus contains 79 protons and 118 neutrons. What is its atomic number and atomic mass nu

mber?The atomic number is 79, and the atomic mass number is 197.The atomic number is 79, and the atomic mass number is 118.The atomic number is 118, and the atomic mass number is 197.The atomic number is 118, and the atomic mass number is 79.
Biology
1 answer:
OLEGan [10]4 years ago
6 0

Answer:

The atomic number is 79 and the atomic mass is 197.

Explanation:

The atomic number (symbol Z) of a chemical element is the number of protons within its nucleus.

Gold (chemical symbol Au)  is a chemical element with  79 protons in its nucleus, therefore with atomic number 79.

The atomic mass is the  average mass of the atoms of an element (in atomic mass unit). The atomic mass is the weighted average of all the isotopes of a a particular element. For each isotope the atomic mass is approximately the mass of both protons and neutrons since electrons make minor contributions.

The atomic mass of Gold (Au) is 196.9665  but, it can be rounded to 197.

You might be interested in
What is the difference between a plant cell and a animal cell
anzhelika [568]

Answer:

Plant Cell: Cell wall, chloroplast, large vaculoe.

Explanation:

Animal cells don't have any of those.

5 0
3 years ago
An example of a large carbohydrate molecule is
solong [7]
Glycogen, cellulose, or a more simple answer would be starch.<span />
7 0
4 years ago
Read 2 more answers
What organism performs only anaerobic respiration for energy
Vanyuwa [196]

Answer: Anaerobic cellular respiration

Some prokaryotes—bacteria and archaea—that live in low-oxygen environments rely on anaerobic respiration to break down fuels. For example, some archaea called methanogens can use carbon dioxide as a terminal electron acceptor, producing methane as a by-product.

Explanation: hopefully i helped

4 0
3 years ago
Which of the following is a good source of vitamin A?
never [62]

Explanation:

the ki composed of vitamin is bone is not decompose and not paralyzed not hard attack in your body and not attack in your anytime of the position Vitamin a food is source of client heat food

4 0
3 years ago
15. The first known bird fossils date to which era of time?
iVinArrow [24]

Answer:

the 15 century Bavarian in southern Germany

3 0
3 years ago
Read 2 more answers
Other questions:
  • The lateral rotators act on the __________. the lateral rotators act on the __________. sacrum os coxae femur lumbar vertebrae
    13·1 answer
  • The analgesic effects of chinese acupuncture can be reversed by __________. dopamine serotonin acetylcholine naloxone
    13·1 answer
  • What is the main function of any organism's reproductive system?
    9·2 answers
  • One fish of this type has alleles 1 and 3 (S1S3) and its mate has alleles 2 and 4 (S2S4). If each allele confers a unit of color
    15·1 answer
  • It's generally accepted that the first life on Earth was unicellular and, while autotrophic, did not have chlorophyll. Later mul
    5·1 answer
  • A diploid cell has two pairs of homologous chromosomes. How
    12·1 answer
  • Three types of organisms are listed below. which of these organisms is made up of one or more cells that carry out functions to
    9·1 answer
  • In genes which exhibit rho-independent transcription termination, if a mutation(s) prevents hairpin loop formation, which of the
    15·1 answer
  • What food contains no lipids, nucleic acids, carbonhydrates, or proteibs?
    5·2 answers
  • Which of the following is TRUE of the process of meiosis?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!