justingajdosz justingajdosz

01-10-2016
Chemistry

contestada

An atom has a mass number of 24 and 13 neutrons. What is the atomic number of this atom? Express

Respuesta :

Аноним Аноним

01-10-2016

A=mass number (protons + neutrons)
Z=atomic number (protons)
N=number of neutrons.

A=Z+N

Data:
A=24
N=13

Therefore:
24=Z+13
Z=24-13=11

Answer: The atomic number of this atom is 11. (The element is sodium)

Answer Link

Otras preguntas

is 10.05 greater than 10.005

Which eight-letter word still remains a word after removing each letter from it.

Compared to other minerals, a mineral that is ranked higher on the Moh’s scale will be: a. harder b. more dense c. shinier d. more reactive

Label each molecule with the name of its shape. See attachment.

In which system of government would states function independently of eachother

All are examples of speed except ______ -5 miles per hour -6 miles per hour north -125 meters per second

Which statement belongs in the Area section of the Venn Diagram? A venn diagram is shown with one circle labeled perimeter and the other labeled area. Choices:

which sphere is dependent on all the other spheres in order to exist? atmosphere hydrosphere lithosphere biosphere

What is 5.96 as a fraction

which new technology of the 1800s had the greatest impact on farmers in the great plains? a. photography b. barbed wire c. electric lights d. steam-powered sawm