Potassium and nickel are in the same row of the periodic table. What do these elements have in common?
• They have similar physical properties.
• They have the same number of valence electrons.
• They have similar reactivity.
• They have the same number of electron shells.
Well, let me break it down for you, my friend. Potassium and nickel may be in the same row of the periodic table, but they have more differences than similarities. So, I’m afraid I can't say they have similar physical properties, similar reactivity or the same number of valence electrons. However, you hit the mark on the last one! They do have the same number of electron shells. So, if you’re looking for some common ground between these elements, that would be it.
Potassium and nickel are in the same row of the periodic table, also known as the same period. While they do not have the same number of valence electrons or the same number of electron shells, they do have similar physical properties and similar reactivity.
Potassium and nickel are in the same row of the periodic table, which means they are both in the fourth period. Let's examine each statement to determine what these elements have in common:
1. They have similar physical properties: To determine if they have similar physical properties, we would need to compare their specific properties, such as melting point, density, and appearance. It is possible that some physical properties may be similar, but it cannot be generalized that all physical properties of these elements are alike.
2. They have the same number of valence electrons: To find the number of valence electrons, we need to look at the group number of each element. Potassium is in group 1, and nickel is in group 10. Potassium has 1 valence electron, and nickel has 2 valence electrons. Therefore, they do not have the same number of valence electrons.
3. They have similar reactivity: Reactivity is a measure of how easily an element undergoes a chemical reaction. Potassium is an extremely reactive metal, while nickel is considered less reactive. Therefore, they do not have similar reactivity.
4. They have the same number of electron shells: To find the number of electron shells, we need to look at the period number of each element. Since both potassium and nickel are in the fourth period, they both have four electron shells. Therefore, they do have the same number of electron shells.
In conclusion, out of the given options, potassium and nickel have the same number of electron shells in common. They do not have similar physical properties, the same number of valence electrons, or similar reactivity.