Answer:
neutrons are inside the nucleus
Explanation:
The most significant contribution that added to Rutherford's discovery of a positive nucleus is that neutrons are also inside the nucleus.
- The discovery of neutrons as a nuclear particle was instrumental to Rutherford's discovery.
- Since during his experiment, the alpha particles were deflected partly, he suggested a massive nucleus made up of just protons.
- With the discovery of the neutron, the mass of the nucleus was enough to cause the deflection.
Answer: 5.3
Explanation:
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<u>Answer:</u> The number of phosphorus atoms in given amount of copper(II) phosphate is 
<u>Explanation:</u>
We are given:
Moles of copper(II) phosphate
= 7.00 mol
1 mole of copper(II) phosphate contains 3 moles of copper, 2 moles of phosphorus and 8 moles of oxygen atoms
Moles of phosphorus in copper(II) phosphate = 
According to the mole concept:
1 mole of a compound contains
number of particles
So, 7.00 moles of copper(II) phosphate will contain =
number of phosphorus atoms.
Hence, the number of phosphorus atoms in given amount of copper(II) phosphate is 
Answer:
Positive charge.
Explanation:
Hello!
In this case, since elements belonging to groups 1A, 2A and 3A are mostly metals, we infer they have the capacity to lose electrons and therefore they become positively charged.
Some examples may be:

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Answer:
60 g/100 g water
Explanation:
Find 5 °C on the horizontal axis.
Draw a line vertically from that point until you reach the solubility curve for CaCl₂.
Then draw a horizontal line from there to the vertical axis.
The solubility of CaCl₂ is 60 g/100 g water.