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What does the symbol Mg2 plus represent?
Magnesium that has lost 2 electrons.
How would the electron configuration for Ca change if two electrons where lost?
It can't sowwy
Are atoms have lost electrons is called?
Atoms that have lost electrons are positive ions, and are called cations.
What is the charge on a single atom that has not gained or lost electrons?
Such an atom would be neutral - no electric charge.
Which takes place during a redox reaction?
Electrons are both gained and lost. Electrons are both gained and lost.
What does the symbol Mg2 plus represent?
Magnesium that has lost 2 electrons.
Electrons of the 19th element?
The 19th element is potassium, which has the atomic symbol K. It has 19 electrons, including one valence electron that can be easily lost.
How is a potassium atom (K) different from a potassium ion (K )?
Potassium consists of potassium atoms with their valence electrons delocalized throughout the metal, put those electrons still essentially "belong" to their atoms. A potassium ion is a potassium atom that has lost its valence electron to another atom molecule or ion and therefore carries a 1+ charge.
Why does a element have a plus 2 charge?
An element you have a +2 charge It is had lost electrons. It would have to lose the same number of electrons that its positive charge is. So it would have lost 2 electrons.
What is the number of electrons gained of lost for potassium?
It is in group 1 and loses its outer electron (1), giving an overall +1 charge
If calcium lost two electrons it would have the same number of electrons as?
Argon
Can sodium and potassium combine to form a covalent bond?
no for a covalent bond requires an exchange of electrons and sodium and potassium only have one electron each and they cant lost it hope this helps someone :)
How do you know the chemical reactivities of elements?
The farther the valence electron are from the nucleus, the more easily they can be lost therefore the more reactive the element is. i.e potassium would be more reactive than sodium (check their valence electrons)
Roman numerals in a cation represent?
the number of electrons lost when forming an ion and that the cation can form more than one cation.
Why cant an ionic bond form between potassium and magnesium's?
Both elements are metals, so react by losing electrons. Potassium will form a 1+ ion and magnesium will form a 2+ ion. These aren't oppositely charged, therefore, can't form an ionic bond. Also, there is nothing available to accept the electrons lost.
What is oxidation number of an element?
The charge an element would have if it lost or gained electrons
What has 19 protons and 18 electrons?
Ionof Element number 19 is the potassium ion: K+Since 19(p+) - 18(e-) = 1+
