According to its location in the periodic table:
- Ge: Period 4, Group 14. Metalloid.
- Se: Period 4, Group 6, Non-metal.
- Be: Period 2, Group 2, Metal.
<h3>What is a periodic table?</h3>
It is a table in which elements are ordered in Groups (columns) and Periods (rows).
According to their ubication and properties they can be classified in:
- Metals: occupy the left and center of the table.
- Metalloids: occupy the right of the table (dark green in the attached table).
- Non-metals: occupy the right of the table (yellow and light green in the attached image).
Let's locate and classify the following elements:
- Germanium: Period 4, Group 14. Metalloid.
- Selenium: Period 4, Group 6, Non-metal.
- Beryllium: Period 2, Group 2, Metal.
Learn more about the periodic table here: brainly.com/question/14514242
Answer:
Sirius B is primarily made out of a carbon-oxygen mixture that was generated by helium fusion in the progenitor star. The outer atmosphere is now almost pure hydrogen, the element with the lowest mass.
Explanation:
2Ca3(PO4)2 + 6SiO2 + 10C ---> P4 + 6CaSiO3 + 10CO
1 mole of Ca3(PO4)2 = 310g
1 mole of P4 = 124g
according to the reaction:
2*310g Ca3(PO4)2----------------124g P4
x g Ca3(PO4)2 ------------------------ 30g P4
x = 150g Ca3(PO4)2
so, your answer is good
The number of protons an element has is the same as the atomic number, so the element would have 86 protons.
The gas particles move faster.