Titanium+by+Carlos

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Miguel: What’s the atomic number of aluminium? It’s the 13.

Paula B: What are the names of the minerals before? Emerald, Aquamarine, Red beryllium, Pink beryllium, Color less beryllium.

Andrea and Bea: They didn’t have the video

Carmen and Salo: The video doesn’t work.

Irene T: What percentage of the alloy chronium have? It contains more tan 12%

Rogelio: Could you say 2 applicattions of the cobalt? In pigments and in screws.

Alejandra: She hasn’t got the question.

Claudia y Paula J: Haven’t got the video.

Ginés, Pablo y Alejandro: What is a foundry? A foundry is a factory that produces melt cast things.

Álvaro: Who's the pharaoh I mentioned in the video? Tutankamon.

David: Made 5 objects of the video made of iron. Gloves, mediaval horseshoes, tools, kitchen utilities and meteorite.

Guillermo: How many uses can lead have? -In balances. -Lead batteries. -Cables.

Jazmín: Can we find magnesium in the free metal form? In which form can we find it? I understand that we can’t. We can find it on salts and hydroxides.

Javier: Where is mercury find? In Europe, America and Asia.

Sara C: Whiy is the nichrome so expensive? Because the 80% of nichrome is nickel and the nickel is very expensive.

Alberto: Tell an object made up of stainless steel. In kitchen utilities.

Yoan: What color is the collier in this video? I can’t see very well but I think that is grey.

Carlos P: In which countries can you find platinum -North America- New York -Europe- Moscu -Africa- Johannesburg

Irene P: Where does silver come from? Rusia, China, Australia, United States, Canada, Mexico, Peru, Bolivia, Chile and Holand.

SLS: Tell me an example of Steel. Carbon Steel.

Tania: How many forms have tin? Say the names. 2 Gray form and in capsule form.

Ángel : What is the atomic number of zinc? 30