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Potassium (K) has an atomic number of 19. It often forms an ion by losing 1 electron. How many electrons would the ion have?
The ion of potassium (K) would have 18 electrons after losing 1 electron. This is because the element loses 1 electron to achieve a stable electron configuration, similar to the nearest noble gas (argon) with 18 electrons.
Is sodium stable by losing 1 electron?
No, sodium is stable by losing 1 electron in order to achieve a full outer electron shell and become a positively charged ion called Na+.
How many electrons must be lost for Cs to achieve a nobel gas electron confirguation?
Caesium (Cs) has 55 electrons, and it will need to lose 1 electron to achieve a noble gas electron configuration. This is because Cs is in Group 1 of the periodic table, so losing 1 electron will leave it with the same electron configuration as the noble gas element in the previous period (Xenon).
Which element has 19 protons and 1 valence electron?
Potassium has 19 total electrons and one electron in its 4th energy level.
What elements have the following electron 1s1?
The element with the electron configuration 1s1 is hydrogen, which has 1 electron in its 1s orbital.
What has one valence electron and reacts with other elements?
Any element in column 1 of a wide form periodic table has exactly one valence electron and reacts with other elements.
Potassium (K) has an atomic number of 19. It often forms an ion by losing 1 electron. How many electrons would the ion have?
The ion of potassium (K) would have 18 electrons after losing 1 electron. This is because the element loses 1 electron to achieve a stable electron configuration, similar to the nearest noble gas (argon) with 18 electrons.
Which element has 1 valence electron and is in period 1.?
The element with 1 electron in period 1 would be hydrogen.
What group of elements react by losing one electron?
The alkali metals in group 1 react by losing one electron.
When a group 1 metal reacts what happens to the outer shell electrons of its atoms?
When a group 1 metal reacts, its outer shell electron(s) are transferred to another atom or shared in a chemical bond. This results in the metal ion having a full outer shell of electrons, usually achieved by losing one electron to become stable with a +1 charge.
Is sodium stable by losing 1 electron?
No, sodium is stable by losing 1 electron in order to achieve a full outer electron shell and become a positively charged ion called Na+.
How many electrons must be lost for Cs to achieve a nobel gas electron confirguation?
Caesium (Cs) has 55 electrons, and it will need to lose 1 electron to achieve a noble gas electron configuration. This is because Cs is in Group 1 of the periodic table, so losing 1 electron will leave it with the same electron configuration as the noble gas element in the previous period (Xenon).
What element has 1 proton 1 neutron and 1 electron?
The element is hydrogen and the isotope is tritium (1H3)
Which element has only 1 electron and behaves like a alkali metal?
The element Hydrogen (H) has only 1 electron. When it loses it, it becomes the Ion H+.
Which element has 19 protons and 1 valence electron?
Potassium has 19 total electrons and one electron in its 4th energy level.
Why does Li have a 0 charge?
Lithium does not have a '0' charge. Its electron configuration is 2,1. This means there is one valence electron in its outer shell. Losing this electron will make Lithium have a full shell (2 only) which all atoms try to achieve, therefore Li has a +1 charge because it loses an electron to gain noble gas configuration.
An element E has the electron configuration Kr 5s2 The formula for the fluoride compound of E is most likely?
The element E is likely barium (Ba), as its electron configuration is Kr 5s2. The fluoride compound of barium would be BaF2, with barium losing its two valence electrons to form a 2+ cation and fluoride gaining one electron to form a 1- anion.
