Organizing Primary Key Value(int) with EF Core

Hello i am having trouble with delete command on EF code first. When i remove one data and after add another data,my primary key value changes. For example: 1-2-3-4-5 and i remove id =5 and add another data primary key changes 6 and it's look like 1-2-3-4-6. Thank you.

private void silToolStripMenuItem_Click(object sender, EventArgs e)
        {
            int id = (int)dgvTurler.SelectedRows[0].Cells[0].Value;
            Tur bulunacakTur = db.Turler.FirstOrDefault(a => a.Id == id);
            
            db.Turler.Remove(bulunacakTur);           
            db.SaveChanges();
            
        }