Pryoynatonvelammer Pryoynatonvelammer

03-02-2016
Chemistry

contestada

Which element above has 8 protons in its nucleus?
a. oxygen
b. carbon
c. phosphorus
d. sulfur

Respuesta :

Bigmokeyceline Bigmokeyceline

03-02-2016

A. Oxygen. Oxygen has an atomic mass of 16. The atomic mass of an atom is the combined weight o the protons and neutrons. Since Oxygen's atomic mass is 16, it has 8 protons and 8 neutrons.

Answer Link

stabbydanarwhal stabbydanarwhal

04-02-2016

Oxygen, you cannot judge an elements number of protons by its atomic mass, but by the atomic number. the atomic number is 8, thus 8 protons.

Answer Link

Otras preguntas

How were life forms affected by the rise in atmospheric oxygen levels that began 2.2 billion years ago?

find an equivalent expression without parentheses -(50x-15y+15)=

(10y^3+20y^2+55y)/5y

Prove that (x^5)-(x^2)+2x +3=0 has at least one real root. Prove that x=cosx has at least one solution.

Scarcity is the condition of not having enough goods and services to satisfy everyone's?

how is mass transit in cities a possible solution tk urban air pollution?

Marika and Freddy sold 70 homes for Ron Realty. If Marika sold 2.5 times as many homes as Freddy, how many homes did each sell?

what is the answer for (20,8),(9,16) ?

Prove that (x^5)-(x^2)+2x +3=0 has at least one real root. Prove that x=cosx has at least one solution.

Marika and Freddy sold 70 homes for Ron Realty. If Marika sold 2.5 times as many homes as Freddy, how many homes did each sell?