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4. The new element Plainsmenium (Pe) was discovered in 2005 by Monte E. Rey
(who will receive his Nobel Prize in Chemistry in the year 2012). It has
three isotopes: Pe-184 (24.60%), Pe-185 (11.20%), and Pe-188 (64.20%).
What is its average atomic mass?

Respuesta :

robertfmontefolka

This is my answer

Explanation:

p=m/v

where:. p=density

m=mass

v=volume

p=F/A = Lim ∆F / ∆A

1 ATM=14.7 psi

= 1.013x10⁶ d/cm²

1 bar=10⁶ d/cm²

=10⁵ N/m2

Hope it helps to you goodluck

I'm not sure but that's the answer of my notebook like my answer please

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