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

Plants must have nitrates to help them grow. what must happen to nitrogen for it to be usable by plants?

Mary's total bill for a used car is $2,700.00. If she pays an equal amount each month for an entire year, how much will she have to pay each month?

Which expression is equivalent to (4mn/m^-2n^6)^-2

To best strengthen this conclusion, the writer should restate the claim. share a humorous story. summarize key points. close with a call to action.

If a tank of gas contains 4 L of N O2 how many molecules are in it

Choose whether the verb in the sentence below is transitive, intransitive, or linking. The snow covered the stacks of hay bales. type of verb: 1 transitive 2 l

Doctor faustus contains multiple themes; with this is mind, please answer the following questions: 1.) identify one theme in doctor faustus. 2.) explain/defend

Solve the proportion 60/n = 20/7

A satellite with a mass of 120 kg fires its rocket thrusters, which give an impulse of 7440 kg-m/s. What was the total change in the velocity of the satellite

Pleaseeee helppppp!!!!!!!!!