Hydrogen and Helium were formed by nuclear reaction in the stars, and other elements were formed after the Big Bang. Please select the best answer from the choices provided

T
F

True

Explanation:

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During the formation of the universe some 14 billion years ago in the so-called 'Big Bang', only the lightest elements were formed – hydrogen and helium along with trace amounts of lithium and beryllium. Elements are formed deep within the cores of certain types of star

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer

what is the question here. i think you messed up.