What is kr5s1?

What is kr5s1?

rubidium. Krypton is an inert gas that ends a Period; rubidium is an alkali metal that begins the next Period, the 5th Period.

In which group is the element whose electron configuration is 5s1?

The 5 in 5s1 5 s 1 tells us the element in question is in period 5 of the periodic table (as it has 5 energy levels). The element found in group 1A and period 5 of the periodic table is rubidium (Rb).

Which element has an outer electron configuration?

Group 18 elements (helium, neon, and argon) have a full outer, or valence, shell. A full valence shell is the most stable electron configuration.

What is the outer electron configuration for the Group 2 element in period 6?

Barium’s outer electron configuration is 6S2.

Which element has a ground state electron configuration of KR 5s14d5?

Explanation: And if Z=42 , the element is molybdenum , Mo .

What period group is Kr 5s1?

Look at a copy of the the Periodic Table, and look at the 4th and 5th Periods. Krypton is an inert gas that ends a Period; rubidium is an alkali metal that begins the next Period, the 5th Period.

Which all elements do have ns2np6 outer electronic configuration?

The element present in the 18th group (except Helium(He) has the general electronic configuration ns2np6. The elements of the 18th group are called noble gas, having 8 electrons in valence shells, and their outer shells are filled with valence electrons, making them very stable.

What is the outer electron configuration for the group 15 element in the fourth period?

In the fourth period, the outermost shell is the 4th shell, so n will be 4 for the elements present in the fourth period. So, the outer electron configuration for group 15 element in the fourth period is 4s24p3 4 s 2 4 p 3 .

What is the outermost electron configuration of the elements in group 2?

The elements in Group 2 (beryllium, magnesium, calcium, strontium, barium, and radium) are called the alkaline earth metals (Figure below). These elements have two valence electrons, both of which reside in the outermost s sublevel. The general electron configuration of all alkaline earth metals is ns2.

What are the electron configurations of Group 2A?

For example, the electron configurations for the elements in groups 2A and 3A are given in Table 6.4. We see that the 2A elements all have ns2 outer configurations while the 3A elements have ns2np1 configurations.

How to write the electron configurations on the periodic table?

Use the periodic table to write the electron configurations for the following atoms by giving the appropriate noble-gas inner core plus the electrons beyond it: (a) Co (atomic number 27); (b) Te (atomic number 52). Answers: (a) [Ar]4 s2 3 d7 or [Ar]3 d7 4 s2; (b) [Kr]5 s2 4 d10 5 p4 or [Kr]4 d10 5 s2 5 p4

Where are the representative elements on the periodic table?

The s block and the p block of the periodic table contain the representative (or main-group) elements. In the middle of the table is a block of ten columns that contains the transition metals. These are the elements in which the d orbitals are being filled.

What kind of elements are in Group 1A?

These elements, known as the alkali metals (group 1A) and alkaline earth metals (group 2A), are those in which the outer-shell s orbitals are being filled. On the right is a block of six columns.