wwildplayer201oy97iq wwildplayer201oy97iq

12-11-2017
Chemistry

contestada

How many neutrons does element X have if its atomic number is 23 and its mass number is 78?

Respuesta :

Penguin84 Penguin84

12-11-2017

The element X has 55 neutrons.

Answer Link

Otras preguntas

Which of these points lies on the line described by the equation below? y - 8 = 3(x + 6) a. (-8,6) b. (-6,8) c. (6,-8) d. (8,-6)

Which word can be changed in the following sentence to give the statement a positive connotation? Through the woods, you could hear the drone of the birds. a.

Hiw do i use mental math to determine if a ratio is simplified?

What an organism looks like, or other detectable characteristics, is its _______. a. genetic variable b. genotype c. phenotype d. allele

suppose the nation were in a recession with many people unemployed (out of work). why would economists be happy to see firms begins to but more capital goods

Which of the following is a common art form in Mexico? a. murals b. sculptures c. clay vessels d. metalwork

Need help!! How much energy is used by a microwave if 15 A of current run through it for a period of 20 minutes?

Which vitamin plays a primary role in vision and the development of body cells? a. vitamin A b. vitamin B6 c. vitamin C d. vitamin D

Astronauts have completed a major mission in space. It was ………. a replacement of the fuel tank in one of the space stations. a. Concerns b. Concern c. Concer

One month Diane rented 12 movies and 2 video games for a total of $65 . The next month she rented 3 movies and 5 video games for a total of $41 . Fin