A hydrogen gas thermometer has a volume of 100 ml at oºc. When immersed in a low temperature
liquid the volume of the gas fell to 87.2 ml. What was the temperature of the liquid?
Оа
-35°C
13°C
313 K
0.0872°C

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8

it's c (engineer's do their work with mechanical stuff not on any living being)