Carbon
is at the topmost element in Group 4A, therefore it is the smallest atom in the said group.
What is the largest atom in its group?
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 is the largest atom in Group 4a 14?
The heaviest element in group 14,
lead
, is such a soft and malleable metal that the ancient Romans used thin lead foils as writing tablets, as well as lead cookware and lead pipes for plumbing. (Recall that the atomic symbols for tin and lead come from their Latin names: Sn for stannum and Pb for plumbum.)
Which is the largest atom in group 17?
| Element Atomic Number (Z) Trend | fluorine 9 (smallest) ↓ | chlorine 17 ↓ | bromine 35 ↓ | iodine 53 ↓ (largest) |
|---|
Which is the smallest atom in group 7A 17 )?
The smallest atom in Group 7A is
F
.
What is Group 4A called?
Group 4A (or
IVA
) of the periodic table includes the nonmetal carbon (C), the metalloids silicon (Si) and germanium (Ge), the metals tin (Sn) and lead (Pb), and the yet-unnamed artificially-produced element ununquadium (Uuq).
Which atom is larger S or O?
S2- is larger than O-
because S2- has more protons and thus a stronger pull on its electrons than O- does, so it has a smaller atomic radius.
Which is the smallest atom?
Helium
is the smallest atom. An electron gets added to each element from left to right and in the same shell. More the attraction, less the space. Therefore helium has the smallest atomic size.
What elements have the most atoms?
Helium
has the most number of mol out of all the options and will thus have the highest number of atoms. Look up the atomic weight (in grams per mole) of each of these 5 elements, and divide the given mass of the element by its atomic weight. That gives the number of moles of each element.
Which element has the largest EI?
The ionization energy decreases from top to bottom in groups, and increases from left to right across a period. Thus,
helium
has the largest first ionization energy, while francium has one of the lowest.
Which is the rarest element on the Earth?
A team of researchers using the ISOLDE nuclear-physics facility at CERN has measured for the first time the so-called electron affinity of the chemical element
astatine
, the rarest naturally occurring element on Earth.
What is the most active element in group 17?
The most active element in Group 17 is
FLUORINE
.
Why is group 17 so reactive?
Halogens are nonmetals in group 17 (or VII) of the periodic table. … Due to their high effective nuclear charge,
halogens are highly electronegative
. Therefore, they are highly reactive and can gain an electron through reaction with other elements.
What is the name of Group 7A?
Group 7A (or VIIA) of the periodic table are
the halogens
: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). The name “halogen” means “salt former”, derived from the Greek words halo- (“salt”) and -gen (“formation”).
Why are Group 7 called halogens?
Group 7 elements form salts when they react with metals. The term ‘halogen’ means ‘salt former’, which is why Group 7 elements are called halogens. …
The halogens are so reactive that they cannot exist free in nature
.
Which ion has largest radius?
| Ion Radius (pm) Atomic Number | N 3 − 146 7 | O 2 − 140 8 | F − 133 9 | Na + 98 11 |
|---|
