Elements, Compounds,& Mixtures, Using the image to the right identify all the elements, compounds, and mixtures. Each image will only be used once.
1. Elements: ____ ____ ____

2. Compounds: ____ ____ ____

3. Mixtures: ____ ____ ____1. Elements: ____ ____ ____

2. Compounds: ____ ____ ____

3. Mixtures: ____ ____ ____

1. Elements: ____ ____ ____

2. Compounds: ____ ____ ____

3. Mixtures: ____ ____ ____

1. Elements: F, H, E

2. Compounds: A, D, I

3. Mixtures: B, C, G

Explanation:

Br>Ge>Kr

Explanation:

Electron affinity is the energy change that results from adding an electron to a gaseous atom(Khan Academy). It is also defined as "the amount of energy released when an electron is attached to a neutral atom or molecule in the gaseous state to form a negative ion" (Wikipedia).

Electron affinity increases from left to right in the periodic table. However, the noble gases possess a complete outermost electron shell.

Hence, electron affinity can be raked from the most negative to the least negative for the three atoms as follows; Br>Ge>Kr