Answer:
Potassium (K)
with an atomic number of 19 has the largest atomic radius. This is because sodium and potassium are elements of group 1.
Which element has the largest atomic radius K or Kr?
The elements K,
Kr
, Ca, Se, As, Ga, Ge, Br belong to period 4 of the periodic table. Since the atomic radius decreases from left to right of the periodic table, the rank from largest to smallest atomic radius will be K>Ca>Ga>Ge>As>Br>Kr.
Which has a larger radius NA or Ca?
The elements calcium and barium are both in the same Group 2 with calcium being higher, so for the neutral atoms,
Ca
would have a smaller radius, its outer electrons being in the n = 4 level as compared with the n = 6 level for the Ba atom. … (v) The nitride ion (N
3 –
) is smaller than the phosphide ion (P
3 –
).
Is Br or Br bigger?
Br
– will have the largest atomic size because Br- has one extra electron in its valence shell which due to its unbalanced negative charge will be repelled and hence the atomic radius of Br- will increase.
Which is larger K+ or Ca2+?
(d)
K+ is larger than Ca2+
Isoelectronic; Ca2+ has more protons to pull e- inward.
Which is larger F or Li+?
In your case, lithium has an atomic number equal to 3 and fluorine an atomic number equal to 9 . So fluorine has more protons in its nucleus. Keep this in mind. … As a result, the atomic size of fluorine will be smaller than that of lithium, or, in other words, lithium will
have larger atomic radius than fluorine
.
How do you determine the largest atomic radius?
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.
What is the difference between Br and Br />?
However, the difference is
the position
, and is universal for all XML tags. <TAG_NAME> indicates the beginning of a tag, and </TAG_NAME> indicates the end of a tag. When a tag is used with nothing between it, then a self-closing, or null tag can be used, which combines the beginning and end.
Which of these is larger in size Br Br -?
(ii) Br or Br
–
:
Br
–
ion
has large size because it is an anion and it has always large size as compared to the parent atom. (iii) O
2 –
or F
–
: Both the anions are isoelectronic species. Since the nuclear charge of O
2 –
ion is small, its size is, therefore, more than that of F
–
ion.
Why is K+ larger than Ca2 +?
(d) K+ is larger than Ca2+ Isoelectronic; Ca2+ has more protons to
pull e- inward
.
Is O or O 2 bigger?
O2− is larger than O
because the increase in electron repulsions that accompany addition of an electron causes the electron cloud to expand. O2− is larger than O because O is neutral but O2− has a charge 2−.
Is C bigger than F?
Comparing carbon (C) with an atomic number of 6 and fluorine (F) with an atomic number of 9, we can tell that, based on atomic radius trends,
a carbon atom will have a larger radius than a fluorine atom
since the three additional protons the fluorine has will pull its electrons closer to the nucleus and shrink the …
Which is larger Li+ or Na+?
As Na atom is larger than Li atom, therefore,
Na
+
ion
is also bigger in size than Li
+
ion. (v) P or As: Both these atoms belong to group 15 of the periodic table. Since As is placed after P, therefore its size is large because atomic size increases down the group. … Ionic radius means the size of the ions.
Which is larger Na+ or Mg2+?
Talking about the ions of both the elements i.e. Na+ and Mg2+, as we know the size of any ion is smaller than its parent element. So, the size of Na+ and Mg2+ is smaller than Na and Mg respectively. Thus, the decreasing order of size is written as:
Na>Mg> Na+>Mg2+
. Therefore, the largest particle is Na.
