brennabananas7431 brennabananas7431

03-10-2017
Chemistry

contestada

If the atomic number of an element is 9 and the mass number is 19, how many neutrons does the atom have?

Respuesta :

Аноним Аноним

05-10-2017

To find the number of neutrons.....

NEUTRONS = MASS NUMBER - ATOMIC NUMBER ( PROTONS)

NEUTRONS = 19 - 9

So this element has 10 neutrons

Answer Link

Otras preguntas

The state with the most Hispanics is _____. Texas California New York Arizona

Your Neighbor has a square-shaped pool with side lengths of 3a^5. What is the area of the pool?

The scientific study of the relations between mental and physical processes is a definition of ____. wundt's psychology cranioscopy psychophysics weber's law fe

What happens when a lithium ion is attracted to a fluoride ion? a. They form a covalent bond. b. They form a molecule. c. They form an ionic compound. d. Th

Compound x is twice as soluble in diethyl ether as it is ethanol and is only sparingly soluble in water. compound y is soluble in water and etanol, but only sp

What is the midpoint B of line segment AC with endpoints A(14, -7) and C(-12,-9)?

The perimeter of a rectangle is 40. if its length is 2 more than 5 times its width, find the dimensions of the rectangle.

Fix the dependent clause below to make it a complete sentence: But I forgot my jacket.

The price of peanut butter rises due to a blight on the peanut crop; peanut butter and jelly are complements. what happens to the equilibrium quantity and price

rewrite this measurement with a simpler unit, if possible. 2.3 kg*L/s