Answer:
See explanation
Explanation:
From left to right, the oxides across period 3;
i) Period 3 oxides all appear white in colour. They are all crystalline solids and their melting points decrease from left to right.
ii) The volatility of period 3 oxides increases from left to right across the periodic table
iii) The metallic oxides on the right hand side adopt giant ionic structures. Silicon oxide which is in the middle of the period forms a giant covalent structure. Oxides of other elements towards the right hand side form molecular oxide structures.
iv) The acidity of oxides of period 3 increases from left to right. Metals on the left hand side form basic oxides while non-metals on the right hand side form acidic oxides. The oxide of aluminium in the middle is amphoteric.
v) The oxides of period 3 elements do not conduct electricity. However, the metallic oxides on the lefthand side conduct electricity in molten state. The non-metallic oxides on the right hand side are molecular hence they do not conduct electricity under any circumstance.
Look at your periodic table.
The element with the lowest number has the most number of atoms making up 1 gram of an element.
The atomic number of Uranium is 92
The atomic number of Lead is 82
They are both pretty heavy, but Lead has the lower number so you need more atoms of it than you do uranium.
Most atoms = 82 Lead.
Answer:
<em>Matter exists in three basic states, which are solid, liquid, or gas. Of these, <u>a gas</u> contains the most thermal energy because in a gas the particles...</em>
<em>I </em><em>hope</em><em> this</em><em> </em><em>helps!</em>
Answer:
freezing, deposition, and condensation
Explanation:
1.)Scientific method is A method of discovering knowledge about the natural world based on making falsifiable predictions (hypotheses), testing them empirically, and developing peer-reviewed theories that best explain the known data. 2.) make an observation ask a question form a hypothesis make a prediction test your prediction Iterate: use the results to make new hypotheses or predictions.3.) observations
