The Latin name of sodium is Natrium, and thus, sodium is denoted with the symbol “Na” on the periodic table. The atomic number of sodium is 11... View Article
On the periodic table, each element has an atomic number. The number 36 on the periodic table represents the atomic number of an element Krypton.... View Article
As of 2019, there are 118 elements in the periodic table. This is a corrected version of a narrative initially published on 2019, January 28. We... View Article
Tungsten is an important element since it is heavy and is one of our heaviest metals. The density of gold is 19.30 g/cm^3, and the density of... View Article
The primary purpose of the periodic table is to organise elements by their common properties. In particular, the elements in the same column of... View Article
Around 92 of the 118 elements in the periodic table are metals. Sometimes, 91 elements are considered as metals. The number of metals is... View Article
There are 17 nonmetals in the periodic table and period 2 has the most nonmetals. They are: Carbon (C) Nitrogen (N) Oxygen (O) Fluorin (F)... View Article
If the first derivative of a function is positive, then the graph of the function lies above the x-axis. Negative means the graph of the function... View Article
Wavelength is the distance between identical points in the adjacent cycles of crests of a wave. Below figure shows the shape of a wavelength.... View Article
Aryl group is a simple, fragrant compound in which one hydrogen atom is detached from the ring and allows it to get connected to a carbon chain.... View Article
In general, wood is recognised as an anisotropic material. However, in engineering elastic model terms, wood is considered as an orthotropic... View Article
KCl is more ionic because the ionic character increases as down the group while decreases along the period in the periodic table. Also, the... View Article
The two main conditions for equilibrium are given below: The first condition is that the net force on the object must be zero. If the net force... View Article
A complex number z = x + iy can be written in polar form z = reiθ that means z = r(cos θ + i sin θ). Here, θ is known as the argument of z and r... View Article
Let P be the principal amount of money. Given that the rate of interest si 2%, i.e. R = 2% Let us assume that in T years, the principal amount... View Article
If the sequence {an} is in GP, such that a4/a6= 1/ 4 and a2 + a5 = 216, then a1 is equal to (1) 12 or 108/7 (2) 10 (3) 7 or 54/7 (4) None of... View Article
