1. Note the average atomic mass of the elements on the nano-balance. Add atoms to the larger balance until it registers the same number (in g) as the reading on the nano- balance (in u). Use the Exponent slider to help get the correct amount. Stop adding atoms when the readings on both balances match exactly Element
CU
C
S
AL
Atomic mass (units)
How many atoms did you need to add?

i'm assuming that the correct answer is indeed the first one/ "a"..

metric time was an attempt to create a standard unit of time based off of 10, but it never took off an is not included in the metric system (si)

here is table 2-2:

country

percent of eligible voters that voted

rank

united states

44.9%

138

canada

60.1%

107

costa rica

84.6%

14

hungary

66.9%

82

japan

57.0%

118

egypt

27.7%

159

south africa

85.5%

10

ans is no, the data set cannot be plotted as a single circle graph