Answer: Substance is Mercury (Hg)
number of protons = 80
number of electrons = 80
Explanation:
Atomic number which is symbolized by "Z" is the number of protons in nucleus of an atom.
Hence,
number of protons = atomic number = 80
- By knowing atomic number, we can find the element by using periodic table. Since the atomic number 80, the element is Mercury (Hg).
If the substance is in its neutral state, which means there is no charge on it, then the number of protons equals to the number of electrons of that element.
Hence,
number of electrons = number of protons = 80
Aw, I hope I can help.
1) C
(A meter stick is the only form of measurement that measures distance)
2) C
(other metric units all correspond with other forms of measurement)
3/4) I can’t measure the line physically from my phone but I think you’d be alright!
5) B
(a triple beam balance measures mass!)
6) B
(corresponds with triple beam balance)
7) A: 34.5g B: 104.3g C: 132.5g
8) C
9) A
(a graduated cylinder is the only form of measurement that measures volume)
10) A
(corresponds with a graduated cylinder!)
Answer:
1 gram=0.1 decagram.
Formula:
Divide the mass value by 10
Answer:
3
Explanation:
litres is the appropriate unit to be used
