Answer:
The second column on the periodic table of the chemical elements is collectively called the alkaline earth metal group: beryllium, magnesium, calcium, strontium, barium, and radium. Because the outer electron structure in all of these elements is similar, they all have somewhat similar chemical and physical properties.
Explanation:
Answer:
Equal parts are needed to make glucose and oxygen. The excess oxygen is released into the air
Explanation:
This equation explains why having plants in your house is good.
A period in the periodic table is a row of chemical elements. All elements in a row have the same number of electron shells
3H + 3Br = HBr9 Organic chemistry mechanism
The correct answer is 9 .