Question

Write the chemical symbols for three different atoms or atomic cations with 19 electrons.

Answer 1

Answer: The three chemical symbols are K,
`Ti^(3+)\text{ and }V^(4+)`

Step-by-step explanation:

Atomic number is defined as the number of electrons or protons that are present in a neutral atom. It is represented by Z.

When a neutral atom looses electrons, it leads to the formation of positive ions known as cations and when a neutral atom gains electrons, it leads to the formation of negative ions known as anions.

So, the atom having atomic number 19 is potassium. Its chemical symbol is 'K'

Titanium is the 22nd element of the periodic table. So, when this atom looses 3 electrons it will have 19 electrons in its orbit. Thus, the cation formed will be
`Ti^(3+)`

Vanadium is the 23rd element of the periodic table. So, when this atom looses 4 electrons it will have 19 electrons in its orbit. Thus, the cation formed will be
`V^(4+)`

Hence, the three chemical symbols are K,
`Ti^(3+)\text{ and }V^(4+)`