help me i will help you back
Attachments:
Answers
Answered by
2
Answer:
1st -10²
2nd 100
3rd 108
4th 6
5th 3√3
Answered by
4
Answer:
Iron is a chemical element with symbol Fe and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is by mass the most common element on Earth, right in front of oxygen, forming much of Earth's outer and inner core. Wikipedia
Symbol: Fe
Atomic mass: 55.845 u
Atomic number: 26
Electron configuration: [Ar] 3d64s2
Melting point: 1,538 °C
Density: 7.874 g/cm³ (near room temperature)
Similar questions