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Hydrogen (H)

Lithium (Li)

Sodium (Na)

Potassium (K)

Rubidium (Rb)

Cesium (Cs)

Francium (Fr)

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13y ago
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6mo ago

Francium with atomic number 87 has only one valence electron.

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Q: Which element had only one valance electron?
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Related questions

How many valence has potassium?

There is just one valance electron in the element potassium.


What is ionic bonding structure?

Ionic bond is when a non-metal takes the metals valance electrons so both atoms can be balanced. Take NaCl for example. Na has one valance electron and Cl only needs one to get eight. So Cl takes Na's one valance electron...:Cl: Na. See the empty spot for Cl, that where Na's valance electron will go.'


How many valence electrons does conductors such as copper have?

only one valance electron does a conductor such as copper have.


How many shells are in hydrogen?

A hydrogen atom has only one electron shell, which is also known as the K shell.


Which transition metal element has only one electron in its 5s orbital?

The transition metal element with only one electron in its 5s orbital is copper (Cu).


What is meant by valency orbit and valency electron?

A valance electron is one that is associated with an atom. The valence orbit is the one that electron travels in.


What is the process for creating an electron dot diagram?

make one dot on the right side of the element's symbol, then just go counter-clockwise, for as many valance electrons you have


How many valence electrons does potassuim have?

Potassium has one valence electron.


Is chlorine an electron doner or an acceptor?

Chlorine is an electron acceptor. It has a strong tendency to gain one electron to achieve a stable electron configuration.


What element has only one valence electron and is extremely reactive?

HYDROGEN


How many numbers of valence electrons in potassium?

There is only one valance electron in potassium.


How many valance electrons does hydrogen have?

Hydrogen has only one electron. Just the one. And it is a valence electron.