# Do period 4 elements have an inner electron configuration of Kr?

## Do period 4 elements have an inner electron configuration of Kr?

Answer and Explanation: The following statement is false: Period 4 elements have an inner electron configuration of [Kr] . The inner electron configuration is of argon (Ar) and not krypton (Kr).

What is the electron configuration of the element in period 4?

The fourth period with n = 4 starts by filling the level 4s. It begins with Potassium. However, we know that 3d orbital is to be filled before filling of 4p orbital starts. This marks the beginning of the 3d transition elements with Scandium (electronic configuration- [Ar]3d14s2).

How many inner electrons does argon have?

So… for the element of ARGON, you already know that the atomic number tells you the number of electrons. That means there are 18 electrons in an argon atom. Looking at the picture, you can see there are two electrons in shell one, eight in shell two, and eight in shell three.

### What is the electron configuration of argon?

[Ne] 3s² 3p⁶Argon / Electron configuration

Do Period 5 elements have an inner electron configuration of Kr?

Answer and Explanation: Period 5 elements come after krypton in the periodic table. This means that their electron configuration has a portion that is similar to that of krypton. So the statement is TRUE.

What element is in group 4 period 4?

Titanium
Group 4 is the second group of transition metals in the periodic table. It contains the four elements titanium (Ti), zirconium (Zr), hafnium (Hf), and rutherfordium (Rf). The group is also called the titanium group or titanium family after its lightest member….Group 4 element.

 Titanium Copper Zinc Gallium Germanium

## Which element has the electron configuration of Argon when it has a stable electron configuration?

The full electron configuration of Potassium (K) is 1s22s22p63s23p64s1. The abbreviated form – [Ar]4s1 – means the electron configuration of Argon (Ar), plus one electron in the 4s orbital. Argon has 18 electrons.

How many outer electrons does Argon have?

The outermost (valence) shell of argon has eight electrons, making it exceedingly stable and, thus, chemically inert.

Which element has the electron configuration of argon when it has a stable electron configuration?

### Is the highest principal energy level of Period 4 elements 4?

The highest principal energy level of any atom equals the number of electron shells of the atom. Period 4 elements all have 4 electron shells. This means that the highest principal energy level of period 4 elements is 4.

What is group 4 of the periodic table?

Elements in Group 4 are titanium (Ti), zirconium (Zr), hafnium (Hf) and rutherfordium (Rf). The first three metals occur naturally in the form of oxide ores and are mostly hard metals under standard conditions. Rutherfordium (Rf) is usually synthesized in the laboratory. They have a high affinity for oxygen.

Which elements have the same electron configuration as argon?

And we can see that the potassium ion, K+, has the same electronic configuration as the chloride ion, Cl-, and the same electronic configuration as an atom of argon, Ar. Therefore, Ar, Cl-, and K+ are said to be isoelectronic species.