Question

ᴡʜᴀᴛ ɪs ᴄᴏᴍᴘᴜᴛᴇʀ ?
ᴅᴇғɪɴᴇ ᴀʟʟ ɪᴛᴢ ᴘᴀʀᴛs..​

Answer 1

Whether it's a gaming system or a home PC, the five main components that make up a typical, present-day computer include: A motherboard. A Central Processing Unit (CPU) A Graphics Processing Unit (GPU), also known as a video card. Random Access Memory (RAM), also known as volatile memory.

Answer 2

Answer:

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The combining capacity of an atom is known as its valency. The number of bonds that an atom can form as part of a compound is expressed by the valency of the element.

We all know how electrons in an atom are arranged in shells/orbitals. Valence electrons are those electrons which are present in the outermost orbit of the atom. From the Bohr-bury scheme, we can say that the outermost shell can contain a maximum of 8 electrons. Only a little chemical activity is observed when the outermost shell is completely filled. We can also say that it’s combining capacity becomes zero.

For example, nitrogen forms a number of compounds with hydrogen such as NH3, N2H4, N3H in which nitrogen atoms have valencies of 3, 2 and 1/3 respectively. Thus, this concept of valency as a mere number was not clear. Therefore, later on valency was defined as the number of chemical bonds formed by an atom in a molecule.