Answer:
Boron and Aluminum
Explanation:
If you write the electron configuration for boron and aluminum, you get:
for boron and 
for aluminum. Both have 3 valance electrons and has 2 electrons in a s-orbital and 1 in a p-orbital. These valance electron similarities are based on the column/group the elements are. Therefore, Boron and Aluminum have similar chemical behaviours and similar arrangement of outer/valance electrons.
Answer:
Explanation:
1. Force between two charged ions: Electrical force
Electrical force of attraction exists between two charged ions due to constant flow of electrons occuring within their field of influence.
2. Ion made of two or more atoms of different elements
: Polyatomic ion
A polyatomic ion is made up of two or more different elements. Most radicals forms polyatomic ion e.g SO₄²⁻
3. Compound whose atoms form bonds by transferring electrons
: Ionic compound
Ionic compounds forms by the transfer of electrons from a less electronegativbe atom to a more electronegative one. This is in a bid for the atoms to achieve stability.
4. Smooth solid formed by repeating patterns of ions, atoms, or molecules
: Crystal
A crystal is a unit of an atom which is made up of definite repeating patterns over a long range.
5. Chemical bond formed when electrons are transferred: Ionic bonds
The bonds resulting from the transfer of electrons between two atoms is an ionic bond. An example is that between Na⁺ ions and Cl⁻ ioin in NaCl
Using this equation, we can take 25/(1.0 + 19) and find that it is equal to 1.25 moles.
Arm. The center is the yellow, in the very middle. I hope this helps.
The smallest particle of an element that still retains the chemical properties of it is an atom.
