How many 204pb atoms are present in a piece of lead weighing 230 mg ? the percent natural abundance of 204pb is 1.4%?

- of Pb-204.

Solution:- From given info, the percent natural abundance of Pb-204 is 1.4%. It means, 1.4 grams of Pb-204 are present in 100 grams sample. With the help of this, we could calculate the amount of Pb-204 present in 230 mg that is 0.23 grams sample as:

= 0.00322 g of Pb-204

Let's convert grams to moles and then atoms as:

= of Pb-204

So, there would be of Pb-204 present in the sample.

passing a magnet thought the

mixture , because iron gets attracted to magnet .

explanation:

venn diagram is pictorial representation with of circles showing the relation between two finite sets or things. the intersection part of two circles conveys the relation present in between those sets or things.

here in the venn diagram of sand and salt two circles represent sand and salt. but the area falling under the intersection of these circle represents the mixture of sand and salt.

so, in a venn diagram the mixture will be placed in a middle that is in between the intersection of two circles.