2. Which of the following 2 elements would act most like one another? a. Sulfur, element 16, and Chlorine, element 17
b. Sodium, element 11, and Magnesium, element 12
C. Argon, element 18, and Neon, element 10
d. Potassium, element 19, and Calcium, element 20

The skeletal system performs a variety of functions that are crucial to maintaining life processes. what function is performed in the bone marrow, but not in the ossified bones of the skeleton? a oxygen transportation c mineral storage b. muscle attachment d red blood cell production

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

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true