The information below refers to six isotopes. how many elements are represented in this group of isotopes? atomic number mass number
19 39
6 13
6 12
19 41
82 207
82 206

There are 3 elements (6;12) (19;39) and (82;207)

There are 3 isotopes (6;13) (19;41) and (82;206)

Explanation:

Step 1:

Isotopes have the same atomic number but a different mass number

The element with number 19 is Potassium

Potassium has a mass number of 39 g/mol

This is the element potassium and is not an element

41C has mass number of 41 g/mol and is an isotope

The element with number 6 is carbon

Carbon has a mass number of 12 g/mol

13C has a mass number of 13 g/mol and is an isotope

The element with number 82 is lead

Lead has a mass number of  207 g/mol

206Pb has a mass number of 206 g/mol and is an isotope

There are 3 elements (6;12) (19;39) and (82;207)

There are 3 isotopes (6;13) (19;41) and (82;206)

people flirt to show their affection towards someone in a less forward way then telling. they want the other person to guess what they’re feeling to have the other person also start to like them

sorry i was late, but i don't know what assignment your talking about, i'm in flvs as well, im in earth space science. but u are behind pace bc every class should be in the 3's or 4'