Adaimh, Dúil, Comhdhúil agus Meascán

Léiríonn an íomhá roinnt substaint éagsúla. Cé mhéad ón liosta seo atá ina dhúil?

The chart below lists some substances and their symbols. How many of these substances are examples of elements?

• 1

• 2

• 3

• 4

Cad atá sa léaráid seo?

This picture represents which of the following?

• Dúil (element)

• Comhdúil (compound)

• Meascán (mixture)

Cad atá 'san íomhá seo?

This picture represents which of the following?

• Dúil (element)

• Comhdúil (compound)

• Meascán (mixture)

Cad atá 'san íomhá seo?

This picture represents which of the following?

• Dúil (element)

• Comhdúil (compound)

• Meascán (mixture)

Cad atá 'san íomhá seo?

What is represented in this diagram?

• Dúil (element)

• Comhdhúil (compound)

• Meascán dúil éagsúla (a mixture of different elements)

• Meascán dúil agus comhdhúil (mixture of elements and compounds)

Léiríonn an léaráid seo ________

This diagram represents ________.

• Comhdhúil (a compound)

• Meascán dúil éagsula (mixture of different elements)

• Dúil (an element)

• Meascán comhdhúil éagsúla (mixture of compounds)

Sa tábla periadach cad dó a sheasann uimhir an ghrúpa?

In the periodic table what does the group number tells you?

• Líón na prótón (no. of protons)

• Líon na leictróin sa sceall is faide amach (no. of electrons in the outermost shell)

• Líon na leictroin sa dúil (the number of electrons in the element)

Cé mhéad prótón atá ag Lithiam?

How many protons does Lithium have?

• 3

• 4

• 7

Cé mhéad leictreoin atá ag Lithiam?

How many electrons does Lithium have?

• 3

• 4

• 7

Cén órd ina bhfuil periad ina bhfuil na dúil sa tábla periadach?

Periods on the periodic table go in what direction?

• taobh go taobh (side to side)

• suas agus síos (up and down)

• suas agus síós agus taobh go taobh (both up and down and side to side)