No. Of protons = mass no. - no. Of neutrons
No. Of protons = 67 - 37
= 30
No. Of electrons = 28
Zinc will have 30 protons and 28 electrons. So, it will have +2 charge
Symbol - Zn^+2
Explanation:
i believe you meant particles*
Two or more atoms<span> may </span>bond<span> with each other to form a molecule. When two hydrogens and an oxygen share electrons via covalent </span>bonds<span>, a water molecule is formed. Chemical reactions </span>occur<span> when two or more </span>atoms bond<span> together to form molecules or when bonded </span>atoms are broken<span> apart.</span>
A Glass pipet
Explanation:
The best laboratory equipment to measure out exactly 4.0mL of a liquid is a pipet.
The pipet is a glass tube with a suction as tthe top.
- It is designed for measuring small units of volume accurately.
- Once dipped into the fluid, the suction is pressed and the liquid gushes in.
- When released, the liquid fills the tube.
- The suction can be pressed at regular intervals to release the liquid till the desired volume is attained.
learn more:
Volume brainly.com/question/10691070
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