The Burj Khalifa is 828,000,000 micrometers tall. How is this value written in scientific notation

Although the diagram is not shown, i know that the convection is heated by a the core.

What are the options? physical property can be color, smell, opacity, viscosity, density, infra red spectrum, melting and boiling points, attraction and repulson to magnets, etc.

Answer(true);

Cobalt (co)hoped i