Answer:
For one atom of lithium -6 I will need_16.85____ atom of lithium -7 for an average atomic mass of 6.944 .
Explanation:
1 ) Let required atom be m .

6 + 7m = 6.944 + 6.944m
7 m - 6.944 m = .944
.056 m = .944
m = 16.85
Answer:
Chromosomes help ensure that DNA is replicated and distributed appropriately during cell division.
Explanation:
Lava I think try that hope it helps :)
The properties of aluminium include low density<span> and therefore <u><em>low </em></u></span><u><em>weight</em></u>, <u><em>high strength</em></u>, <u><em>superior malleability</em></u>, <u><em>easy machining</em></u>, <u><em>excellent corrosion resistance</em></u> and <u><em>good thermal and electrical conductivity</em></u><span> are amongst aluminium's most important properties. <u><em>Aluminium is also very easy to recycle.</em></u>
Hope this helps:D
Have a great rest of a brainly day!</span>