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 electron shells.
• They have similar reactivity.
• They have the same number of valence electrons.
1 - They have the same number of electron shells.
2 - They all have the same number of electrons in the outer shell
3 - baking a cake
4 - A new substance is formed as the battery is used
5 - The H2O and O2 produced have the same mass as the original H2O2.
Grrrrrrrreat! I'm sorry I had to LOL (if you know you know)
1 - They have the same number of electron shells.
2 - They all have the same number of electrons in the outer shell
3 - baking a cake
4 - A new substance is formed as the battery is used
5 - The H2O and O2 produced have the same mass as the original H2O2.
6 - 20
7 - It has the same number of atoms on both sides for each specific type of atom.
8 - eight
Thank you!! I got 100
why is this place so blank like the heck.... man I'm finna put up some answers dang.
To find out what these elements have in common, we can refer to the periodic table. Both potassium (K) and nickel (Ni) are located in the same row, which is also known as a period. In this case, they are in the fourth period.
1. Similar Physical Properties: Elements in the same period generally exhibit similar physical properties. However, potassium and nickel belong to different groups. Despite this, there can be some similarities in certain physical properties, such as atomic size, density, and melting/boiling points.
2. Same Number of Electron Shells: The period number corresponds to the energy level or the number of electron shells an atom has. Since potassium and nickel are both in the fourth period, they possess four energy levels or electron shells.
3. Similar Reactivity: While potassium and nickel may have different chemical properties due to belonging to different groups, their position in the same period suggests that they could have similar reactivity. This means that they may react with other elements in analogous ways.
4. Same Number of Valence Electrons: Valence electrons are the electrons present in the outermost energy level or shell of an atom. To determine the number of valence electrons for potassium and nickel, we need to look at their group numbers. Potassium is in Group 1, and nickel is in Group 10. Both of these groups have one-digit group numbers, indicating that both elements have one valence electron.
Therefore, the correct answer is "They have the same number of valence electrons".