Why am I only getting yellow in my flame test?

How will the emission of an alpha particle affect the atomic number of an atom

Need on both questionswill markbr />

Match term definition ellipse a) diagonal cross section of a cylinder circle b) diagonal cross section through the widest part of a sphere sphere c) cross section parallel to the base of a cone great circle d) shape created when a semi-circle is rotated around the y-axis triangle e) perpendicular cross section of a cone