Answer:
There are three factors that help in the prediction of the trends in the periodic table: number of protons in the nucleus, number of energy levels, and the shielding effect. The atomic radii increase from top to the bottom in any group. The atomic radii decrease from left to right across a period.
Explanation:
Major periodic trends include atomic radius, ionization energy, electron affinity, electronegativity, valency and metallic character. These trends exist because of the similar electronic configuration of the elements within their respective groups or periods and because of the periodic nature of the elements.
An ore contains minerals (metals etc) that have economic value.
Fossil fuels are organic material, which means that they are made from dead organisms.
Answer:
D: Metal
Explanation:
Most conductors are made from metal, for the alloys allow for a "freer" passage way for electrons to pass through.
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Answer:
Density = 25.2 g/20.0 ml = 1.26 g/ml
57 ml x 1.26 g/ml = 71.8 g
Cake is a fluffy tasty dessert with frosting, while pie is a crusty, hardish dessert with fillings such as cherries or apples. Can I plz have brainliest?
