Home > Chemistry > Isotopes

What does #"X"# represent in the following symbol: #""_35^80"X"# ?

Answer 1

Caleb Adams

Do you mean #35/80X#? That should be Bromine

The element's name in the periodic table is displayed by X.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 2

Wyatt Atkins

For #""_(35)^(80) X#, recall that the isotope notation uses the following symbols:

#bb(""_(Z)^(A) X^(pmn))#

So, with an atomic number of #35#, we look at the fourth period and seventh group/column to get #"Br"#, or bromine. With a mass number of #80#, we have the #"Br"-80# isotope.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 3

Henry Antrim

the 35th atomic number element.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.