There are 6.022 Times. 1023 atoms of Hg in 1 mole of Hg. The number of atoms in 4.5 moles of Hg can be found by multiplying 4.5 by 6.022 Times. 1023.

Which is the number of atoms in 4.5 moles of Hg, correctly written in scientific notation with the correct number of significant figures?
2.7 Times. 1024
27 Times. 1023
2.71 Times. 1024
27.099 Times. 1023

8 carbon atoms forming single bonds with 18 hydrogen atoms; a triple bond exists between the third and fourth carbon atom from the right

explanation:

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.