jay9l0acobbyrossaha jay9l0acobbyrossaha

07-01-2016
Biology

contestada

An isotope is an atom of an element that varies in mass number due to variation in the number of:
A. atoms.
B. protons.
C. neutrons.
D. electrons.

Respuesta :

nemo123 nemo123

07-01-2016

C. neutrons///Number of protons determines element, and number of electrons is always same as number of protons in atoms (no charge).

Answer Link

Otras preguntas

Chen Sheng and Wu Guang are best known for leading the rebellion against the first Qin Emperor, Qin Shi Huangdi leading the rebellion against the second Qin Emp

How do schifter and christopher counter the argument that human rights and democracy are not valued by many people in the world

The team raises most of their money at the bake sale. The error in this sentence is a A) pronoun-antecedent voice agreement error. B) pronoun-antecedent number

Predict how heat would flow if beaker A is moved so that it's touching beaker B A. Heat would flow from beaker B to beaker A. B. No heat flow would take place b

Which helping verb agrees with the subject and correctly completes the verb phrase? Those garage doors __________ squeaking loudly. A. was B. be C. is D. are

In your opinion, what was the most important element of the Northwest Ordinance of 1787? Why?

In at least two hundred words, discuss how feminine identities are revealed in “Aunt Imogen,” “A Servant to Servants,” and “Lights

Which sentence uses a verb that agrees with its pronoun subject? A. Few of the singers was on key. B. Not one of those teenagers look old enough to drive. C. Se

Find the solution to the following equation by transforming it into a perfect square trinomial. x2 – 10x = 39. Is {–3, 13} correct?

Which sentence uses a verb that agrees with its pronoun subject? A. Few of the singers was on key. B. Not one of those teenagers look old enough to drive. C. Se