Answer:
The element will be 
Explanation:
Given that,
Number of proton = 80
Number of neutron = 81
Number of electron = 79
We know that,
The atomic number is equal to the number of proton.
So, the atomic number is 80.
According to atomic number,
The element will be mercury.
We need to calculate the atomic mass
Using formula of atomic mass
Put the value into the formula
We need to find the element
Using atomic mass and atomic number
So, the element will be
Put the value of A and Z
Hence, The element will be
Answer:
See Below
Explanation:
'an aerobic ' means it does not use oxygen
Water molecules pull the sodium and chloride ions apart, breaking the ionic bond that held them together. After the salt compounds are pulled apart, the sodium and chloride atoms are surrounded by water molecules, as this diagram shows. Once this happens, the salt is dissolved, resulting in a homogeneous solution.
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Molecules in food contain chemical energy that cells use to produce ATP = adenosine triphosphate.
Answer:
One kind of atom.
Step-by-step explanation:
An <em>element</em> consists of one kind of atom.
Al is an element, so Al consists of one kind of atom.
C and D are <em>wrong</em> , because Al contains only atoms of aluminium.
