Fluorine
has the greatest attraction for electrons in any bond that it forms. The attraction of an atom for shared electrons is called its electronegativity.
Which atom has the greatest desire for extra electrons?
Which atom has the greatest desire for extra electrons: Ge, Ca, or
Br
? Electronegativity is a measure of an element’s desire for electrons. It increases as you move to the right on the chart, so Br has the greatest desire for electrons.
What is the desire of every electron?
Electron Affinity (EA)
You can think of EA as the “desire of an electron” by an atom. If the atom “wants” the electron a lot, then the EA is big. Less desire is smaller energy and there is even no desire and the numbers go to zero and even negative.
Which elements lose electrons most easily?
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.
What is the Lewis structure for FNO?
*What is the Lewis structure for FNO?
An “N” in the middle with two dots. An “F” connnected by a dash with six dots around it. An “O” on the other side connected by two dashes and having four additional dots.
Why do atoms want 8 electrons?
The Significance of “8” in Chemistry
The rule of 8 or the Octet rule is the
tendency of atoms to have eight electrons in their valence shell
. Eight electrons in this final shell allow atoms to be stable and non-reactive. … Atoms tend to be reactive when their valence shell (or outermost shell) is incomplete.
Who formulated the octet rule?
This observation, published in separate papers (1916) by
the German chemist Walther Kossel and the American chemist Gilbert Newton Lewis
, is known as the rule of eight, or octet rule, and is used to determine the valence, or combining capacity, of several chemical elements.
How many electrons are in each shell?
Each shell can contain only a fixed number of electrons: The first
shell can hold up to two electrons
, the second shell can hold up to eight (2 + 6) electrons, the third shell can hold up to 18 (2 + 6 + 10) and so on. The general formula is that the nth shell can in principle hold up to 2(n
2
) electrons.
Which element does not lose electron easily?
F
is the element that does not lose an electron easily, as it is a non-metal (halogen) belonging to group 17 of the periodic table.
Does an atom lose electrons?
Sometimes atoms gain or lose
electrons
. The atom then loses or gains a “negative” charge. These atoms are then called ions. Positive Ion – Occurs when an atom loses an electron (negative charge) it has more protons than electrons.
What elements gain electrons?
In general, metals will lose electrons to become a positive cation and
nonmetals
will gain electrons to become a negative anion. Hydrogen is an exception, as it will usually lose its electron. Metalloids and some metals can be can lose or gain electrons.
What is the shape of FNO?
ROH + NOF → RONO + HF. It has
a bent molecular shape
: this can be rationalized in the VSEPR model in terms of the lone-pair of electrons located on the N atom.
Is Nof a bent?
The electron dot diagram for NOF is as follows: The N atom has three electron groups on it, two of which are bonded to other atoms.
The molecular shape is bent.
What is the hybridization of FNO?
Here the central N-atom is surrounded by two bond pairs and one lone pair. Hence it will form three hybrid atomic orbitals, that is
sp2 hybridization
. The central N-atom is surrounded by two sigma ( ) bonds and one pi bond ( ).
What is the 2 8 8 rule in chemistry?
There is a 2-8-8 rule for these elements.
The first shell is filled with 2 electrons, the second is filled with 8 electrons, and the third is filled with 8
. You can see that sodium (Na) and magnesium (Mg) have a couple of extra electrons. They, like all atoms, want to be happy.
Why is 3rd shell 8 or 18?
Each shell can contain only a fixed number of electrons, up to two electrons can hold the first shell, up to eight (2 + 6) electrons can hold the second shell, up to
18 (2 + 6 + 10)
can hold the third shell and so on. The general formula is that the nth shell can hold up to 2(n
2
) electrons in principle.
