Potassium has atomic number of 19.Give three deductions which can be made from this statement
The atomic number of potassium is 19. Give three deductions which can be made from this statement
1. Potassium is an element that can be found on the periodic table.
2. Potassium has 19 protons in its nucleus.
3. Potassium is an alkali metal, as elements in this group typically have low atomic numbers.
Three deductions that can be made from the statement "Potassium has an atomic number of 19" are:
1. Potassium has 19 protons in its nucleus: The atomic number of an element represents the number of protons in its nucleus. Since the atomic number of potassium is 19, it tells us that there are 19 protons in the nucleus of a potassium atom.
2. Potassium is a reactive metal: Based on its position in the periodic table, potassium belongs to the alkali metal group. Alkali metals are highly reactive due to their tendency to lose one electron. Potassium's atomic number of 19 indicates that it has one valence electron, which makes it highly reactive.
3. Potassium is the 7th element in the third period of the periodic table: The atomic number also provides information about an element's position in the periodic table. Potassium's atomic number of 19 tells us that it is the 7th element in the third period of the periodic table.
From the statement that potassium has an atomic number of 19, we can make the following three deductions:
1. Number of protons: The atomic number of an element represents the number of protons in its nucleus. Therefore, we can deduce that potassium has 19 protons.
2. Number of electrons: In a neutral atom, the number of electrons is equal to the number of protons. Since potassium is neutral (not an ion), we can deduce that it also has 19 electrons.
3. Periodic table position: The atomic number determines an element's position on the periodic table. As potassium has an atomic number of 19, we can deduce that it belongs to the 4th period (row) of the periodic table.