Atomic Number 7

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  1. Atomic Number 72
  2. Atomic Number 75
  3. Atomic Number 70
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Related to atomic number 7: atomic number 78
AtomicAtomic Number 7

Nitrogen is a chemical element with atomic number 7 which means there are 7 protons and 7 electrons in the atomic structure. The chemical symbol for Nitrogen is N. Nitrogen is a colourless, odourless unreactive gas that forms about 78% of the earth’s atmosphere. The atomic number is the number of protons in the nucleus of an atom. The number of protons define the identity of an element (i.e., an element with 6 protons is a carbon atom, no matter how many neutrons may be present). The number of protons determines how many electrons surround the nucleus, and it is the arrangement of these electrons that.

Noun1.atomic number 7 - a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas; constitutes 78 percent of the atmosphere by volume; a constituent of all living tissues
N, nitrogen
chemical element, element - any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
air - a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of; 'air pollution'; 'a smell of chemicals in the air'; 'open a window and let in some air'; 'I need some fresh air'
gas - a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely
Atomic number 72Atomic number 75
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Atomic Number 72

The atomic number (represented by the letter Z) of an element is the number of protons in the nucleus of each atom of that element.An atom can be classified as a particular element based solely on its atomic number. For example, any atom with an atomic number of 8 (its nucleus contains 8 protons) is an oxygen atom, and any atom with a different number of protons would be a. Three elements 'X', 'Y' and 'Z' have atomic numbers 7, 8 and 9 respectively. (a) State their positions (Group number and period number both) in the Modern Periodic Table. (b)Arrange these elements in the decreasing order of their atomic radii. (c) Write the formula of the compound formed when 'X' combines with 'Z'. Nitrogen is atomic number 7. Every element has its own unique atomic number.


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Atomic Number 75

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Atomic Number 70