Which of the following describes an element? Choose all that apply. Question 1 options:

Gold is an example.

Salt water is an example.

Different components in a fixed ration.

There is only one type of substance present.

Water is an example.

Composed of one type of atom with its own unique properties.

Explain which group an element with the electron configuration 1s2 2s2 2p6 3s2 3p6 3d1 4s2 belongs to.

Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic

Amap that uses a range of colors and shading to represent the elevation, depth, or landscape of specific features on earth is a/an map.