Which Group Is Very Unreactive? Group 8A — The Noble or Inert Gases Which group is least reactive? Noble gases are nonreactive, nonmetallic elements in group 18 of the periodic table. Noble gases are the least reactive of all elements. That’s because they have eight valence electrons, which fill their outer energy level. Which group
What Is The Volume Of 1 Gram Helium At STP In Litres? Explanation: Assuming that helium behaves as an ideal gas, we know that a mole of ideal gas occupies 22.4 litres at STP. The atomic weight of helium is 4 g/mol, so 6 g is 1.5 moles. The volume occupied at STP, therefore, is
How Many Atoms Are Present In 2 Mole Of H2SO4? Answer. Explanation: One sulfuric (H2SO4) molecule has 2 hydrogen atoms, 1 sulfur atom How many H atoms are in 2 moles of sulfuric acid? Notice that you have two hydrogen atoms per formula unit of sulfuric acid. This means that one mole of sulfuric acid
Which Is Highly Unreactive Element? Group 8A — The Noble or Inert Gases What is the most unreactive element? Noble gases are nonreactive, nonmetallic elements in group 18 of the periodic table. Noble gases are the least reactive of all elements. That’s because they have eight valence electrons, which fill their outer energy level. What
What Is Ionized Helium? All stars are made up mostly of hydrogen and helium. Normal, neutral helium atoms that still have both electrons are called He I. … Under conditions (temperatures around 60,000 to 80,000 kelvins) that exist in the Sun’s atmosphere, helium atoms are ionized to form He II ions. What does he+ mean
What Is Role Of He In This Laser? The role of the Helium gas in He-Ne laser is to increase the efficiency of the lasing process. Two effects make Helium particularly valuable: The direct excitation of Neon gas is inefficient, but the direct excitation of He gas atoms is very efficient. What is the role
What Element Has 2 Protons 2 Neutrons? What element has 2 protons 2 neutrons? Helium is the second element of the periodic table and thus is an atom with two protons in the nucleus. Most Helium atoms have two neutrons in addition to the protons. In its neutral state, Helium has two electrons in orbit