What element has the largest charge? Atomic radii vary in a predictable way across the periodic table. As can be seen in the figures below, the atomic radius increases from top to bottom in a group, and decreases from left to right across a period. Thus, helium is the smallest element, and
francium
is the largest.
How do you find the largest ion?
Which atom or ion is the largest?
As can be seen in the figures below, the atomic radius increases from top to bottom in a group, and decreases from left to right across a period. Thus, helium is the smallest element, and
francium is the largest
.
Which has the highest electronegative value?
So, the correction option is (C),
Fluorine
has the highest electronegativity (~3.98) or electron affinity value among the given options. Note: Don’t be confused with the terms electronegativity or electron affinity.
Which of the following has the largest electric negative value?
Caesium is the least electronegative element (0.79);
fluorine
is the most (3.98).
A value of
4.0
is assigned to fluorine, the most electronegative element.
Thus, a carbon ion can have a charge of anywhere from
-4 to +4
, depending on if it loses or gains electrons. Although the most common oxidation states of carbon are +4 and +2, carbon is able to make ions with oxidation states of +3, +1, -1, -2, and -3.
- Use the periodic table. The usual charge of an element is common to its group. …
- Use a chart. …
- For a single atom, the charge is the number of protons minus the number of electrons.
- Find the charge by balancing charge in a compound.
On the Periodic Table
metals (found on the left of the table) will be positive.
Non-metals (found on the right) will be negative.
| Index Name Charge | 1 beryllium 2 | 2 sodium 1 | 3 magnesium 2 | 4 aluminum 3 |
|---|
(i) The sodium ion (
Na
+
) is larger than the magnesium ion (Mg
2 +
)
due to two effects.
Anions are almost always larger than cations
, although there are some exceptions (i.e. fluorides of some alkali metals).
Fluorine is the most and oxygen is the second most electronegative element. Hence, among all the options,
oxygen has highest electronegativity
.
| Element | sodium | Symbol | Na | Atomic number | 11 | Electronegativity | 0.93 |
|---|
Cl
has the most negative one.
Solution :
Neon
has the highest positive (+ 116) electron gain enthalpy.
Fluorine is the most electronegative element because
it has 5 electrons in it’s 2P shell
. The optimal electron configuration of the 2P orbital contains 6 electrons, so since Fluorine is so close to ideal electron configuration, the electrons are held very tightly to the nucleus.
Answer 1: The short answer is that the charge of the iron atom in FeO is
+2
, because it needs to balance the -2 charge of the oxygen atom to create a neutral FeO molecule. Iron is an interesting metal because it can have different oxidation states (aka charges in a molecule).
Group I (alkali metals)
carry a +1 charge, Group II (alkaline earths) carry a +2, Group VII (halogens) carry -1, and Group VIII (noble gases) carry a 0 charge.
