For metalloids on the periodic table, how do the group number and the period number relate? A. The lower the group number, the lower the period numbers, so the metalloids are found in a diagonal moving down from left to right.
B.The lower the group number, the higher the period numbers, so the metalloids are found in a diagonal moving up from left to right.
C.The higher the group number, the lower the period numbers, so the metalloids are found in a diagonal moving down from left to right.
D.The higher the group number, the higher the period numbers, so the metalloids are found in a diagonal moving up from left to right.
Answers
Answer : The correct option is A.
Explanation :
Metalloid : Metaloids are the elements whose properties lie between the metals and non-metals.
There are six commonly elements which are boron, silicon, germanium, arsenic, antimony and tellurium. The rare elements are polonium and astatine.
The relation between the group number and period number of metalloid is that the lower the group number, the lower the period numbers and the metalloids are found in a diagonal moving down from left to right in the periodic table.
Answer:
(A) The lower the group number, the lower the period numbers, so the metalloids are found in a diagonal moving down from left to right.
Explanation:
Search up a periodic table and you will see.
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Answer:
The step that usually comes last in solving numeric problem is to evaluate.
Explanation:
First step is Analyze .
Second is Calculating .
Third is Evaluate .
Analyze : To solve a word problem, you must first determine where you are starting from and where you are going . Then you decide whether you know the answer or you don't know it . After that you make plan for getting from unknown to known.
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Evaluation : After calculation , you need to evaluate whether the answer is reasonable or not? Does it make sense?Did you choose the right equation ?
It helps to round off the numbers and make an estimate of the answer.
Answers
The final volume of the gas is approximately 3.24 mL when the pressure has increased from 5 mmHg to 589 mmHg.
To solve this problem, we can use the combined gas law, which relates the pressure, volume, and temperature of a gas. The formula for the combined gas law is:
P1V1/T1 = P2V2/T2
where P1, V1, and T1 are the initial pressure, volume, and temperature of the gas, and P2, V2, and T2 are the final pressure, volume, and temperature of the gas.
In this problem, we are given the initial volume (V1 = 381 mL) and pressure (P1 = 5 mmHg), and we want to find the final volume (V2) when the pressure has increased to 589 mmHg. We can assume that the temperature remains constant.
We can start by rearranging the combined gas law to solve for V2:
V2 = (P1V1/T1) x (T2/P2)
Since the temperature is constant, we can simplify the formula to:
V2 = (P1V1)/P2
Plugging in the values we know, we get:
V2 = (5 mmHg x 381 mL)/589 mmHg
Simplifying, we get:
V2 = 3.24 mL
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Answers
The pressure of the gas will become double when its Kelvin temperature becomes its initial value.
Further Explanation:
Ideal gas equation:
Ideal gas is just a theoretical concept and practically no gas can act as ideal. It can be considered as group of random moving particles having perfectly elastic collisions between them.
Ideal gas equation for one mole of gas is mentioned below.
PV = RT …… (1)
Here,
P is the gas pressure.
V is the gas volume.
T is the absolute temperature of gas.
R is the universal gas constant.
Standard conditions refer to state when pressure of gas is 1 atm and its temperature is 273 K.
Consider P’ and T’ to be new pressure and temperature respectively while all other terms in ideal gas equation remains constant. Equation (1) then modifies as follows:
P’V = RT’ …… (2)
Since new pressure is doubled, P’ becomes 2P. Equation (2) becomes,
(2P)V = RT’ …… (3)
Dividing equation (3) by equation (1), we get:
…… (4)
Solving for T’,
Therefore pressure is doubled when temperature becomes twice its initial value.
Learn more:
- Which statement is true for Boyle’s law? brainly.com/question/1158880
- Calculation of volume of gas: brainly.com/question/3636135
Answer details:
Grade: Senior School
Subject: Chemistry
Chapter: Ideal gas equation
Keywords: ideal gas equation, R, T, P, V, 2P, 2T, pressure, volume, universal gas constant, P’, T’, standard conditions.
Then we go
and if P2 is equal to 2P1, we have
which means that needed temperature is half of the initial temperature
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Answers
Final answer:
The Periodic Table of Elements lists over 100 known elements, providing critical information such as the element's atomic number, symbol, name, and atomic mass. Elements are grouped based on their chemical properties and electron configuration.
Explanation:
Over 100 existing elements are systematically organized and displayed on the Periodic Table of Elements. Each box on the Periodic Table represents a different element and provides critical information such as the element's atomic number, symbol, name, and atomic mass. Elements are grouped together based on their chemical properties and electron configuration, which is a representation of the organization of electrons around the nucleus.
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Final answer:
Over a hundred elements, both naturally occurring and experimentally discovered, are listed and classified on the Periodic Table of the Elements. They are sorted by atomic number, and those with similar properties and valence shells are grouped into columns and rows respectively.
Explanation:
Over 100 existing elements are listed and classified on the Periodic Table of the Elements. This list of elements is arranged in ascending order of atomic number, which is the number of protons in each nucleus. The periodic table not only identifies the chemical symbol, atomic number, and mass number of each element but also groups elements according to their propensity to react with other elements.
It's important to note that elements found on the periodic table have an equal number of protons and electrons. However, the number of protons and neutrons may not always be equal across all elements. In addition to the 92 naturally occurring elements, there are several larger, unstable elements that have been discovered experimentally
Aside from organizing elements according to their atomic number, the periodic table is also structured in a way that elements with similar properties compose columns in the table, while elements with the same number of valence shells compose rows, making it an essential tool for understanding and predicting chemical behaviors.
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