Front

What is the total number of valence electrons in an atom with the electron configuration 1s²2s²2p²?

Back

4

Front

Which atom has the smallest atomic radius: Li, F, Be, or C?

Back

F

Front

What type of mixture is characterized by a uniform composition throughout?

Back

Homogenous

Front

What type of mixture is characterized by a non-uniform composition?

Back

Heterogenous

Front

What property of an element indicates it can be hammered into thin sheets?

Back

Malleability

Front

Which element can conduct electricity and is malleable: H, Sn, He, or S?

Back

Sn

Front

What is the net charge of an ion with 8 protons, 9 neutrons, and 10 electrons?

Back

2-

Front

Define valence electrons.

Back

Electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

What is atomic radius?

Back

The distance from the nucleus of an atom to the outermost shell of electrons.

Front

Explain the difference between homogenous and heterogenous mixtures.

Back

Homogenous mixtures have a uniform composition, while heterogenous mixtures have distinct, separate components.