USUS UKUKIndiaIndia

Every Question Helps You Learn

Join Us
Streak
Leading Streak Today
Your Streak Today
Streak
Leading Streak Today
Your Streak Today
Bonding - Metallic
Metals have many uses.

Bonding - Metallic

This Chemistry quiz is called 'Bonding - Metallic' and it has been written by teachers to help you if you are studying the subject at high school. Playing educational quizzes is a user-friendly way to learn if you are in the 9th or 10th grade - aged 14 to 16.

It costs only $12.50 per month to play this quiz and over 3,500 others that help you with your school work. You can subscribe on the page at Join Us

This quiz looks specifically at metallic bonding. It's difficult to imagine life without metals, we use them in practically every aspect of our lives. Virtually everything involves metals in some way but what makes them so useful? In a word - bonding. The arrangement of their atoms gives metals certain characteristics which are very useful to us. High melting and boiling points, reflection of light, conduction of heat and electricity - these are all properties that we take advantage of in some way.

1.
Why do metals conduct electricity?
The positive metal ions are free to move
The negative electrons are free to move
All the constituent parts can move through the metal
The positive protons are free to move
The electrons that make up the 'sea' of delocalised electrons are free to move. This allows conduction of both heat and electricity
2.
If a potential difference is applied to a metal...
the fixed electrons will stay in place and no current will pass through the metal
the negative ions will move through the metal carrying the electrical current
the delocalised ions will move through the metal carrying the electrical current
the delocalised electrons will move through the metal carrying the electrical current
They are attracted to the positive pole. As they leave the metal, fresh electrons are added via the negative pole
3.
The bonding in metals is due to a strong attraction between...
positive metal ions and a sea of negative electrons
positive metal atoms and a sea of negative electrons
negative metal atoms and a sea of positive electrons
negative metal ions and a sea of negative electrons
Remember that opposites attract
4.
Superconductors...
work at any temperature
conduct heat better than other materials
have little or no resistance
conduct an orchestra really well
In conductors, electrical energy is lost because of the heating effect caused by resistance. In a superconductor, hardly any electrical energy is lost making electricity transmission much more efficient
5.
What type of bonding is present in metals?
Covalent
Ionic
Hydrogen
Metallic
The majority of elements have this type of bonding
6.
Pick the correct statement about the arrangement of particles in a metal.
The particles are arranged randomly and far apart
The particles are arranged regularly and far apart
The particles are arranged regularly and close together
The particles are arranged randomly and close together
Metals usually have higher densities than non-metals because the particles are so closely packed together
7.
What does malleable mean?
Can be stretched into wires
Can be bent or hammered into shape
Is easily shattered
Is shiny
Most metals are malleable
8.
Metals have...
low melting points because they have weak bonds
low melting points because they have strong bonds
high melting points because they have weak bonds
high melting points because they have strong bonds
The strong bonds make it more difficult for the particles to move further apart - requiring more energy - raising the melting point. There are exceptions and the metal mercury is already molten at room temperature
9.
Metals are malleable because...
a large amount of energy is required to slide one layer of electrons over another
little energy is required to slide one layer of electrons over another
little energy is required to slide one layer of ions over another layer
a huge amount of energy is required to slide one layer of ions over another layer
You can immediately dismiss the first two options because they are talking about layers of electrons. In metallic bonding, it is the metal ions that are in layers, the electrons are randomly arranged
10.
One drawback of superconductors is...
their behavior is erratic
they only work at VERY low temperatures
they could enable super fast transmission of electricity
they could enable loss free power transmission
To put metals into a superconducting state, extremely low temperatures close to absolute zero are required. If it becomes possible to make superconductors that work at temperatures above 0oC it would really change the world
Author:  Kate Gardiner

© Copyright 2016-2024 - Education Quizzes
Work Innovate Ltd - Design | Development | Marketing