![bayleegreen](/avatars/48205.jpg)
bayleegreen
02.07.2019 •
Biology
What are the number of protons, neutrons, and electrons for the −2 anion from the 17o isotope of oxygen? (the atomic number of oxygen is 8.) select one: a. 8p+; 8n; 6e− b. 8p+; 10n; 8e− c. 7p+; 10n; 10e− d. 8p+; 9n; 10e−
Solved
Show answers
More tips
- P Photography and Videography How to Choose a Digital Camera?...
- C Computers and Internet How to Properly Order Clothing from International Online Stores...
- F Food and Cooking How to Calculate the Gender of Your Child with Blood?...
- S Society and Politics 10 Tips for Boosting Your Self-Esteem...
- C Computers and Internet How to Create a Folder on Your iPhone?...
- G Goods and services How to sew a ribbon: Tips for beginners...
- F Food and Cooking How to Make Mayonnaise at Home? Secrets of Homemade Mayonnaise...
- C Computers and Internet Which Phone is Best for Internet Surfing?...
- F Food and Cooking Everything You Need to Know About Pasta...
- C Computers and Internet How to Choose a Monitor?...
Answers on questions: Biology
- B Biology North america is currently experiencing an unprecedented and rapid loss of species. what is believed to be the main cause? answer a. continental drift b. human activities...
- M Mathematics In the Cash Now lottery game there are 16 finalists who submitted entry tickets on time. From these 16 tickets, three grand prize winners will be drawn. The first prize...
Ответ:
The correct answer is d. 8p+; 9n; 10e−
Oxygen exists in three isotopes ¹⁶O, ¹⁷O and ¹⁸O. The atomic number of oxygen is 8. It means its nuclei has 8 protons. The given is oxide⁻² anion. This means it has gained 2 electrons. Thus, oxide anion have 8 protons and 10 (8+2) electrons. The number of neutrons depends on the isotope, in this question mass number is given¹⁷O. The mass number is the sum of the protons and neutrons in the nucleus. Hence, number of neutrons oxide anion will be 17-8 = 9 neutrons.
Ответ:
to provide electrical signals to initiate peristalsis