Question

an element Y is in the 2 period and group 16 of the periodic table then a)what is the name of this element b)what will be the molecular formula of the compound formed by Y with the sodium​

Answer 1

Required Element:-

• Period - 2
• Group - 16

(a) The element is Oxygen(O)$.$

(b) When Oxygen(O) reacts with sodium(Na), the anhydrous form of Sofium hydroxide is formed, which is known as Sodium Oxide($\sf{Na_2O}$).

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When Sodium is burnt in air containing oxygen, they produces a bright light followed by formation of white powdery Sodium Oxide compound.

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Let's know something more about Oxygen element:

• Atomic number of Oxygen is 8 and Atomic mass of Oxygen is 16(approx.)
• It was discovered by Joseph Priestly.
• It is the member of Chalcogens or Group 16 family.
• O16, O17 and O18 are the isotopes of Oxygen.
• It has paramagnetic property.
• It is used by Plants and animals for respiration.
• It is used in the manufacturing of Glass.
• Without Oxygen, Life won't have exist on Earth.

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