Boron Atomic Structure and Ions

This video tutorial explains how to determine the number of protons and electrons in a B3+ ion. It begins by identifying the atomic number of neutral boron, which is 5, indicating it has 5 protons and 5 electrons. The video then explains that the B3+ ion has lost 3 electrons, resulting in only 2 electrons remaining. A simulation is used to illustrate the energy levels and electron configuration of boron, showing how the loss of electrons leads to a positive charge. The tutorial concludes by summarizing the differences in electron count between neutral boron and the B3+ ion.

What is the first step in determining the number of protons and electrons in a boron ion?

• Find the atomic number of boron

• Identify the atomic mass of boron

• Determine the charge of the boron ion

• Count the number of neutrons in boron

How is the atomic number related to the number of protons in an element?

• It is always double the number of protons

• It equals the number of protons

• It is half the number of protons

• It has no relation to the number of protons

What is the difference in the number of electrons between neutral boron and the boron ion?

• The boron ion has more electrons

• Neutral boron has more electrons

• They have the same number of electrons

• The boron ion has no electrons

What happens to the charge of boron when it loses electrons?

• It becomes unstable

• It becomes more negative

• It remains neutral

• It becomes more positive

How many electrons does a B3+ ion have?

• Zero

• Two

• Three

• Five

What is the mass number of boron approximately?

• 20

• 15

• 5

• 11

How many protons are present in both neutral boron and the boron ion?

• Nine

• Seven

• Five

• Three

What is the significance of the highest energy level being full in a boron ion?

• It makes the ion unstable

• It indicates a negative charge

• It contributes to the ion's stability

• It has no significance

What is the charge of a boron ion with three fewer electrons than protons?

• 3+

• 2+

• 3-

• Neutral

Why does boron have a 3+ ionic charge?

• It loses three electrons

• It gains three protons

• It gains three electrons

• It loses three protons