With one another to form more complex Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Cesium (Cs).
and Francium (Fr) are in the same column in the periodic table. Why
are these elements in the same column in the periodic table?
A. They are the same size.
B. They react with each other.
C. They have similar properties.
D. They have the same number of protons.

There are 6.022, 104 atoms of hg in 1 mole of hg the number of atoms in 45 moles of hg can be found by multiplying 4.5 by 6.022, 102 which is the number of atoms in 4.5 moles of hg, correctly written in scientific notation with the correct number of significant figures? 0 21,109 0 21,100 271, 1024 27.099, 100 mark this and retum save and exit submit

Drug abuse will not lead to physical and psychological dependence. true or false ?

Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what  most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.