Groups and Electrons
The number of outer shell electrons Group VI has
What is 6 electrons?
What do atoms lose or gain during reactions to form ions?
What are electrons?
How does the reactivity of metals change down a group?
What is 'it generally increases'?
Name an element in Group IV which is a metalloid
What is silicon?
An element has 3 outer-shell electrons. Which group is it in?
What is Group III?
How many electrons does a Group I atom lose to form an ion?
What is 1 electron?
Define reactivity
What is 'How easily an element undergoes a chemical reaction by gaining, losing or sharing electrons.'
Describe the proportionality between atomic mass and volume
Why are Group VIII elements called 'noble gases'
What is 'they have a full outermost shell and are chemically unreactive'
What is the charge on an ion that gains 2 electrons?
What is '-2'?
What effect do inner electron shells have on outer electrons?
What is 'they shield outer electrons from the nucleus's attraction'?
What type of oxide is associated with aluminium?
What is Amphoteric oxide?
Why do Group IV elements often share electrons instead of gaining or losing four electrons?
What is 'Gaining or losing four electrons requires too much energy, so they often share electrons through covalent bonds.'
Why do Group VII atoms gain electrons rather than lose them?
What is 'they only need 1 more electron to fill their outermost shell vs. donating 7 electrons'?
Why does the reactivity of Group I metals increase down the group?
What is 'outer electrons are farther from the nucleus and more shielded, so they are lost more easily'
Give one metallic property and one non-metallic property of silicon
What is 'shiny, high MP or conductor of electricity and brittle, non malleable or ductile'