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It does not exist
Most likely, this is Potassium's (K) atomic number.
It would be a metal . The metal family takes up most of the periodic table
This is a noble gas (group 18).
The most reactive elements are alkali metals and halogens.
Most likely helium, an element on the Periodic Table of Elements.
It does not exist
It's necessary to see the table you are referencing to answer this question
Most likely, this is Potassium's (K) atomic number.
negative ion
Any element that is in group 15 of the periodic table will form three covalent bonds.
Total up the number of electrons. It appears to be 19, therefore, it likely corresponds to the 19th element on the periodic table, potassium.
It would be a metal . The metal family takes up most of the periodic table
This is a noble gas (group 18).
group 16, oxygen family
Yes, iodine is an element. It is in the periodic table.
Elements in the middle of the periodic table are metals, and they are probably best categorized as transition elements.