Question

chemistry 11th element definetion​

Answer 1

Answer:

In chemistry, an element is a pure substance which cannot be broken down by chemical means, consisting of atoms which have identical numbers of protons in their atomic nuclei. The number of protons in the nucleus is the defining property of an element, and is referred to as the atomic number.

Answer 2

Answer:

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✈︎Eʟᴇᴍᴇᴛs:-

• ❥︎A chemical element is a substance that cannot be broken down by chemical means. Although elements aren't changed by chemical reactions, new elements may be formed by nuclear reactions.

• ❥︎Elements are defined by the number of protons they possess. Atoms of an element all have the same number of protons, but they can have different numbers of electrons and neutrons. Changing the ratio of electrons to protons creates ions, while changing the number of neutrons form isotopes.

• ❥︎There are 118 known elements. Research is underway to make element 120.1 When element 120 is made and verified, the periodic table will need to be changed to accommodate it!

• ❥︎A chemical element is a substance that cannot be further broken down by any chemical reaction.

✈︎Nᴏᴛᴇ:-

• ❥︎Each element has a unique number of protons in its atom. For example, a hydrogen atom has 1 proton, while a carbon atom has 6 protons.
• ❥︎Varying the number of electrons in an atom of an element produces ions. Changing the number of neutrons produces isotopes.
• ❥︎There are 118 known elements.

✈︎Exᴀᴍᴘʟᴇs Oғ Eʟᴇᴍᴇɴᴛs:-

• ❥︎Any of the types of atoms listed on the periodic table is an example of an element, including:
• ❥︎copper
• ❥︎cesium
• ❥︎iron
• ❥︎neon
• ❥︎krypton
• ❥︎proton - technically a lone proton qualifies as an example of the element hydrogen