What atom has an atomic number of 2?
Helium
What has the highest atomic number?
Oganesson
Which atom will more easily pull in the electrons?
In particular, cesium (Cs) can give up its valence electron more easily than can lithium (Li). In fact, for the alkali metals (the elements in Group 1), the ease of giving up an electron varies as follows: Cs > Rb > K > Na > Li with Cs the most likely, and Li the least likely, to lose an electron.
Which element holds its electrons most weakly?
Francium
Why is he bigger than H?
Helium has an atomic radius of 31 pm, hydrogen has an atomic radius of about 53 pm. This is mostly because the charge of the helium nucleus is twice as big as that of the hydrogen nucleus. The larger charge leads to a smaller average size for the innermost s-orbital.
How do atoms interact when they are far apart?
If two atoms are too far apart, their interaction is too weak compared to other surrounding bodies to amount to anything. In the Van der Walls effect, two atoms brought close to each other induce electric dipole moments in each other, and these dipoles then attract each other weakly through electrostatic attraction.
Which atomic radius is larger H or He Why?
Answers and Replies Helium has smaller radius than hydrogen because in helium the electrons are attracted by a larger nuclear charge that is not fully “screened” by the electron-electron interaction.
Which ion has largest radius?
= 34 ) > R b + ( A . N . = 37 ) electrons) ∴ S e 2 − has largest radius.
Is SE or SE 2 bigger?
It has a 4.7-inch display compared to the original’s four-inch screen and the entire phone is almost 30 percent bigger. Sure, the new SE is smaller than the rest of Apple’s current lineup and is smaller than basically any Android phone you can buy now.
Is F or O 2 bigger?
Explanation: From top to bottom of the periodic table ions will increase in radii. However, now left to right the radius is more of a function of the number of electrons. Similarly, O2- will be larger than F- as both have 10 electrons but Z=8 for oxygen and Z=9 for fluorine.
What is smaller K+ or Ar?
K+ has one more proton in its nuclei than Ar, so I would expect that if both have the same electron configuration – the one with more protons in its nuclei would have the smaller radius since the electric force between its nuclei and its electrons is bigger, hence pulling the two closer together…
Which has the smallest size Na Na+ Na CL?
Answer. Among the given species, Cl⁺ has the smallest size.