<em>Same group element have same</em><em><u> Valence electron</u></em><em> and behave similarly in </em><em><u>Chemistry.</u></em>
<u>Explanation:</u>
For example. First group elements Alkali metals:- H, Li, K, Rb, Cs, Fr
Valance electron will take part in forming a bond with other elements and compound will form. All the above-given elements (H-Fr) have valence electron 1 in outer most 'S' shell. All have electronic configuration S1
Behavior: Since valence electrons are the same so the behavior of all the elements in this group is the same. All are metal (from Li-Fr, except Hydrogen), all are very reactive, does not found in native state in the environment, and all react with water.
Answer:
1)Mass increases .
2) Mass decreases
Explanation:
1)because oxygen combine with copper metal .
2)it decomposes into gases that escape.
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Hydrophobic - hates water
Hydrophilic -loves water
Bolded words: Hydrophobic / Hydrophilic
1) FATS Hydrophobic
2) Fatty acids and monoglycerides Hydrophilic
3) Triglycerides Hydrophobic
4) Chylomicrons Hydrophilic
Continental crust is the layer of igneous, sedimentary, and metamorphic rocks that forms the continents and the areas of shallow seabed close to their shores, known as continental shelves.
- Wikipedia
Answer:
B
Explanation:
Crush solid reactant into smaller pieces.