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np3 pipe np4

- non pressure pipe class np3 -np4 is used for heavy duty load

is used for medium duty load

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12y ago

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What is NP4 Hume pipe?

It is Reinforced Concrete, Heavy Duty, Non-pressure Pipes.


What is the general electronic configuration of p block elements?

The general electronic configuration of p block elements is ns2 np1-6. This means that the outermost electron shell of p block elements contains electrons in either the np1, np2, np3, np4, np5, or np6 orbitals.


What is the most likely charge on an ion formed by an element with a valence electron configuration of ns2 np4?

The element with a valence electron configuration of ns2 np4 is sulfur (S). Since it needs to gain 2 electrons to achieve a stable electron configuration, it is most likely to form an ion with a charge of -2.


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In groups 13 through 18 valence electrons may be in which sublevels?

In groups 13 through 18, valence electrons may be in the s, p, and d sublevels. Group 13 elements have valence electrons in the s and p sublevels, while group 14-18 elements may also have valence electrons in the d sublevel in addition to s and p sublevels.


How would you relate the number of valence electron to their group number in the periodic table?

For main group chemistry, the trend followed would be as such, where "n" is the valence orbital: ns1 = group 1 ns2 = group 2 ns2 np1 = group 3 (also called group 13) ns2 np2 = group 4 (also called group 14) ns2 np3 = group 5 (also called group 15) ns2 np4 = group 6 (also called group 16) ns2 np5 = group 7 (also called group 17) ns2 np6 = group 8 (also called group 18) This rule can only be successfully applied to main group chemistry, the D and F blocks (transition metals, lanthanides and actinides) do not follow this.


How many valence electrons does an atom have from group 16?

Atoms of elements in Groups 13-18 have 10 fewer valence electrons than their groups numbers.However , helium atoms have only 2 valence electrons.