That0neH1s0kaS1mp That0neH1s0kaS1mp

02-09-2021
Biology

contestada

If an atom has 123 protons, and a mass of 256, what is the atomic number of this element?
A. 123
B. 256
C. 133
D. None of these

Respuesta :

noobnoob013360 noobnoob013360

02-09-2021

123. The atomic number is always equal to the number of protons. It’s also always equal to the number of electrons

Answer Link

Otras preguntas

Jocelyn estimates that a piece of wood measures 5.5cm. If it actually measures 5.62 cm, what is the percent error of Jocelyn’s estimate?

Please help I’ll name brainliest

The area of the base of a cube is 36 in2. What is the total surface area of the cube?

TRUE OR FALSE- marley's ghost is wrapped up in old rope

Rose's age is 3 times the difference of her brother's age and 6. Rose is 15 years old. How old is her brother?

PLEASE HELP WILL GIVE BRAINLIEST!!!!!!!!!!!! PRTTTYYY PLEASE

00:00 Which of the following fractions are equivalent to 7/6 ? Select all that apply.

answer the fallowing

A rectangle patio is 7 feet by 8 feet. What is the length of the diagonal of the patio?

What is the single-celled organism that is animal and plant-like called? _____________________