Atomic radius decreases across a row (increasing positive charge in the nucleus causes electrons in the same energy level to "shrink" into the nucleus due to electrostatic attraction). This means that potassium has the largest atomic radius in period 4.
The element in period 4 of the Periodic Table with the highest electronegativity is krypton (2.96). The period 4 element with the lowest electronegativity is potassium (0.82).
The element that bonds with 4 chlorine atoms is carbon. Carbon tetrachloride is a compound where carbon forms bonds with 4 chlorine atoms.
The element in period 4 group 2A is calcium (Ca).
Carbon. Carbon is in the second period, so it has electrons in its second energy level, and it is in the fourth group in the second energy level, so it has 4 electrons.
The element in group 4 period 5 is Zirconium (Zr).
The element in period 4 of the Periodic Table with the highest electronegativity is krypton (2.96). The period 4 element with the lowest electronegativity is potassium (0.82).
The element that bonds with 4 chlorine atoms is carbon. Carbon tetrachloride is a compound where carbon forms bonds with 4 chlorine atoms.
The element with the largest ionization energy in period 4 is argon. Argon has a full outer electron shell with 8 electrons, making it stable and more difficult to remove an electron compared to other elements in the same period.
There are no "atoms in an element," but rather atoms OF an element. If you are trying to find the number of atoms in a sample of a pure element you divide its weight by its molar mass and then multiply by 6.022 x 10^23 to get the answer in atoms. The answer options are 2,3, or 4.
The element in period 4 group 2A is calcium (Ca).
Carbon. Carbon is in the second period, so it has electrons in its second energy level, and it is in the fourth group in the second energy level, so it has 4 electrons.
Br (Bromine) is a period 4 element in the same group as F.
The element in group 4 period 5 is Zirconium (Zr).
Calcium (Ca) is the metallic element in period 4 with 20 electrons.
In 4CaCO3, there are a total of 4 calcium (Ca) atoms, 4 carbon (C) atoms, and 12 oxygen (O) atoms.
element K, or potassium
The element is krypton (Kr)