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How many electrons do the elements of the most stable group have in their outer layer?
Eight, except for helium which has two.
What is made from 15g of oxygen and 5g of helium?
There isn't a specific compound that can be made using 15g of oxygen and 5g of helium, as oxygen and helium do not readily react with each other to form compounds. However, both oxygen and helium are gases at standard conditions.
How many protons neutrons and electrons are in helium?
Helium has two protons, since its atomic number is two. It is an inert element so it also has two electrons. The number of neutrons depends entirely on the isotope. The most common and stable isotope of Helium has 2 neutrons.
What two elements only need two valence electrons to be happy?
The two elements that only need two valence electrons to achieve a stable electron configuration are helium (He) and beryllium (Be). Helium, being a noble gas, has a full outer shell with two electrons, making it stable. Beryllium, a metal, typically forms compounds by sharing or losing its two valence electrons to achieve a stable state, similar to that of helium.
How many inner shell electrons are there in Helium?
Since Helium is a noble gas meaning it is stable, and the fact that it has one shell, it has 2 shells in its inner-most shell.
How many nutrons are there in helium?
There are two neutrons in a helium atom, along with two protons and two electrons. Helium-4 is the most common and stable isotope of helium, with two protons and two neutrons.
What two gases were most common in the solar nebula?
Hydrogen and Helium
How many electrons do the elements of the most stable group have in their outer layer?
Eight, except for helium which has two.
Is helium oxygen?
No. Helium and oxygen are two different elements.
Why is a helium atom stable with only two electrons in its outermost energy level?
helium has completely filled valence orbitals and hence is stable
The two elements most abundant in the universe are?
Hydrogen and helium are the two most abundant elements in the universe.
How many electrons protons neutrons are in helium?
Helium has two protons, since its atomic number is two. It is an inert element so it also has two electrons. The number of neutrons depends entirely on the isotope. The most common and stable isotope of Helium has 2 neutrons.
How many protons and neutrons electrons in helium?
Helium has two protons, since its atomic number is two. It is an inert element so it also has two electrons. The number of neutrons depends entirely on the isotope. The most common and stable isotope of Helium has 2 neutrons.
What is made from 15g of oxygen and 5g of helium?
There isn't a specific compound that can be made using 15g of oxygen and 5g of helium, as oxygen and helium do not readily react with each other to form compounds. However, both oxygen and helium are gases at standard conditions.
what combination of carbon and oxygen atoms is stable?
The most stable combination of carbon and oxygen atoms is carbon dioxide (CO2). Each carbon atom forms a double bond with two oxygen atoms, resulting in a stable molecule with a linear geometry.
Why doesn't helium burn even in the core of the sun?
Helium does not burn because it is unreactive. Most elements react to achieve a noble gas electron structure, which is especially stable. With two electrons in the first energy level, helium already has one of these stable structures and therefore has no need to react. As to the core of the Sun, this is not an environment in which chemical reactions occur, and there is no oxygen there anyway. The reactions in the Sun are nuclear reactions, which are a completely different thing from burning.
How many protons neutrons and electrons are in helium?
Helium has two protons, since its atomic number is two. It is an inert element so it also has two electrons. The number of neutrons depends entirely on the isotope. The most common and stable isotope of Helium has 2 neutrons.
