According to the research, the correct option is 3, Igneous rocks are those formed from a molten product from volcanic activity.
<h3>What are Igneous rocks?</h3>
They are rocks of high resistance, isotropy, brittleness and density that are created from the cooling and solidification of the magma, whether fragmented or compact, that form at erupting volcanoes, that is, this substance, made up of molten rocks and other elements, is found inside the planet.
When the cooling process takes place superficially and quickly, extrusive igneous rocks are produced, among which are obsidian and basalt, they usually appear after the eruption of a volcano, since the ejected lava solidifies.
Therefore, we can conclude that according to the research, the correct option is 3, Igneous rocks are those formed from a molten product from volcanic activity.
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Metalloid is the closest because noble gases are obviously out, nonmetals are terrible conductors, and metals are not malleable
Im not sure I understand the question at hand..
1 mol of atoms contains Avogadro's number of atoms. Avogadro's number =6.022140857(74)×10^23
So there are
1
4
×
N
A
nitrogen atoms in such a molar quantity of nitric oxide, approx.
1.5
×
10
23
individual nitrogen atoms. How many OXYGEN atoms in such a quantity?
Here I use
N
A
as I would use any other collective number: a dozen, a score, a gross. I am perfectly free to do so, because any physical scientist knows precisely what I mean by a
mole
.
Answer:
D atoms of the same element which have different numbers of neutrons
Explanation:
Isotopy is the existence of two or more atoms of the same element having the same atomic number but difference mass number due to differences in the number of neutrons in their various nuclei.
- These atoms are called isotopes
- Isotopes of an element have the same electronic configuration.
- They have the same chemical properties but only differ in their masses due to the difference in the number of neutrons.
