Answer:
Mendeleev had left the noble gases out of his periodic table.
Explanation:
Mendeleev's periodic table is pictured in the image attached to the question.
Mendeleev's table obviously lacked the noble gases. The reason for this grave omission is simple; the noble gases were not known as at the time when he formulated his periodic table. There weren't any known elements whose properties were similar to the properties of the noble gases. This would have lead him to suspect their existence.
(1) Ocean to Continent
(2)Continent to Continent
(3)Ocean to Ocean
are the three sub types of convergent plate boundaries.
Answer:
hope it helps.
<h3>stay safe healthy and happy.<u>.</u><u>.</u></h3>
POH = - log [ OH-]
pOH = - log [ 1 x 10⁻¹²]
pOH = 12
it can influence the temperature which affects the climate and climate affects weather
