CHEMISTRY HIGH SCHOOL

Describe and explain the trends in reactivity in different groups of the periodic table, using your knowledge of electronic structure. [6 mark]

Answers

Answer 1
Answer: Metal period- Reactivity Gets smaller as you move from left to right.
Group- Reactivity  gets bigger as you move down a group.

Related Questions

The ratio of oxygen to carbon by mass in carbon monoxide is 1.33:1.00. part a find the formula of an oxide of carbon in which the ratio by mass of oxygen to carbon is 2.00:1.00.
Which element has the greatest average atomic mass?
Someone help me with this plz due in 10 minutes ILl give brainly!!!
I REALLY NEED HELP WITH THIS CHEMESTRY PROJECT. I DO NOT UNDERSTAND ANYTHING OF THIS. CAN YOU GUYS PLZ HELP ME?Problem: You and your team work at Southern Nevada Water Authority and have been given the job of managing fluoride levels for the municipal water system. Today, you will need to measure the mass of the mineral sample fluorite (chemically, CaF2). Use this sample to determine how much water must be added to yield a 1 ppm fluoride solution. Your supervisor is requesting tanker trucks to bring the excess water. He needs to know how many tanker trucks to request and the total cost.Notes: 1 mol CaF2 = 78.08 g CaF2 = 6.02 x 1023 molecules of CaF21 molecules of CaF2 = 2 atoms of F1 mol H2O = 18 g H2O Density of water is 1 g/mL1000 mL = 1 L and 3.78 L = 1 gallonmass of sample of CaF2 = 287.185 g1 part per million = 1 atom of fluorine per 999,999 water molecules. 1 truck can carry 12,800 litters of water at a cost of $2,852.42 dollars.Before you begin mixing a solution of fluorite and water your team must first calculate the amount of water you will need. Your team will create a presentation that will show all of the necessary calculations to ensure that the greater Las Vegas area will have cavity free teeth. The presentation should include the following information:- Draw a diagram that points out the basic design of the water system and transport.- Demonstrate the following calculations (a) Calculate how many moles of mineral fluorite (CaF2) are in you sample. (b) Calculate the number of fluorine atoms in the sample of the mineral fluorite (CaF2). (b) Calculate how many molecules of water you will need. (c) Calculate the number of gallons of water that are needed to dissolve a 287.185 gram sample of fluorite to yield 1ppm solution.(e) How many trucks will be needed? Show your calculations!(f) what is will be the total cost?- Bonus points for creativity or “WOW” factor (i.e. pictures, color, neatness)!
Why is a high temperature needed to melt potassium iodide?

Chapter 2.4.1. The ______ energy lost by the inward movement of nickel-iron within a differentiating molten planetary body would be converted first into _______ energy and then into ______ energy. a. momentum, thermal, gravitational b. gravitational, kinetic, thermal c. thermal, momentum, kinetic d. kinetic, thermal, gravitational

Answers

Answer:b. gravitational, kinetic, thermal

Explanation:

The above explains the mechanism of the core forming process on earth/planet.

It is believed that this process might has contributed significantly to a planet's early stages heating. The time when these core-forming event happened is thought to have been mainly completed very early when Earth was young . The type of this event rather than it being seen as a single catastrophic event, it is likely to have been as a result of contractions on the earth severally.

The addition of partially differentiated material from another giant impact the rate of this spasm , and it increases each time the planet's mass is to increased.

This is a little on the history of planetary evolution.

the frog population in the Amazon basin varied. every 500 years there was a mutational change leading to speciation. in between the population remained the same with no observable changes. What pattern of macroevlution determined this change?

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The frog population in the Amazon basin varied. Every 500 years there was a mutational change leading to speciation. In between the population remainedthe same with no observable changes. The pattern of macroevolution is that there is a change in species orientation and adaptation to change

The founder of Islam was _____. Abbas ibn Abd al-Muttalib Muhammad Abu Bakr Khosrau

Answers

Muhammad was the founder of Islam
The founder of Islam was Muhammad
-Corey

Two pieces of silk have an electric charge after being rubbed on a piece of amber. What will happen when the two silk pieces are brought close together?A.They will repel one another.
B. They will attract one another.
C. They will transfer their electrons from one to the other.
D. They will not affect one another.

Answers

When the two silk pieces are brought close together they will repel one another. The correct choice is A. 

Answer:

They will repel on another.

Mixtures have strong chemical bonds true or false ?

Answers

false Because they

A group of atoms that are held together by covalent bonds so that they move as a group

Josh prepares a solution by mixing sodium nitrate with water. To calculate the molarity of the solution, josh should calculate the moles of which substance,and why?

Answers

There are a number of ways to express concentration of a solution. This includes molarity. Molarity is expressed as the number of moles of solute per volume of the solution. Josh should calculate the moles of the sodium nitrate by dividing the mass with the molar mass of sodium nitrate. This is because it is the solute in this problem. 

Answer:

the answer is sodium nitrate because it is solute

Explanation

thats what is correct I assure you.
Other Questions
Which of these reactions can be classified as double replacement reactions?A) Zn + 2HCl → ZnCl2 + H2 B) 2NaCl + F2 → 2NaF + Cl2 C) 2AlBr3 + 3K2SO4 → 6KBr + Al2(SO4)3 D) 2K + MgBr2 → 2KBr + Mg
Doing another onee! 50 points for answering thiss!
Which term best describes the stored energy based on the position or chemical composition of an object?a. kinetic energy b. potential energy c. activation energy d. thermodynamic energy
Which one is the alditol? A. The molecule on the left, glycerol B. The molecule on the left, glyceraldehyde C. The molecule on the right, Glycerald flomde D. The molecule on the right, Glycerol