[hassanalhawy]

يوجد كود مبسط أستاذة ياسمين لطلبك

Public Class Form1
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim o As Boolean = Me.RadioButton1.Checked
        Dim na As Boolean = Me.RadioButton2.Checked
        Dim mg As Boolean = Me.RadioButton3.Checked
        Dim al As Boolean = Me.RadioButton4.Checked
        Select Case True
            Case o = True
                Me.Label4.Text = "O"
                Me.Label5.Text = "8"
                Me.Label6.Text = "16"
            Case na = True
                Me.Label4.Text = "Na"
                Me.Label5.Text = "11"
                Me.Label6.Text = "23"
            Case mg = True
                Me.Label4.Text = "Mg"
                Me.Label5.Text = "12"
                Me.Label6.Text = "24"
            Case al = True
                Me.Label4.Text = "Al"
                Me.Label5.Text = "13"
                Me.Label6.Text = "27"
            Case Else
                MsgBox("يرجى اختيار أحد العناصر")
        End Select

    End Sub
End Class