Identify the number with the correct number of significant figures for each step of the calculation and for the final answer. Note that 2 is an exact number.

y equals 2.10 StartBracket 9.0 plus 2 times 35.35 EndBracket.

2 (35.35) =

The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?

What was bohr’s contribution to the planetary model

What are the constituent metals of stainless steel?