Science

Question 1

What is Silicon at room temperature?

Answer 1

Solid

Question 2

What is the symbol of Silicon?

Answer 2

Si

Question 3

Is Silicon synthetic or natually made?

Answer 3

Naturally Made

Question 4

Identify the Atomic Mass of Silicon.

Answer 4

28.0855

Question 5

True or False: A metal is often shiny and a poor conductor of electricity?

Answer 5

False; metal is a good conductor of electricity.

Question 6

True or False: Silicon is in sand, glass, electronic devices, and metal tubing?

Answer 6

True

Question 7

True or False: Mendeleev was unable to see future elements in the table.

Answer 7

False; there were spaces missing so he knew there was.

Question 8

In what state are most non-metals at in room temperature?

Answer 8

Gas

Question 9

Approximately how many elements are metal on the periodic table?

Answer 9

3/4

Question 10

What does periodic mean in the periodic table?

Answer 10

It has repeating cycles

Question 11

What is the most common element in the universe?

Answer 11

Hydrogen

Question 12

What general statement does not apply to metals?

Answer 12

Most metals are brittle.

Question 13

Which of the following is not on an element key?

Answer 13

The Density

Question 14

At room teperature most metals are what?

Answer 14

Solid

Question 15

All metals do what?

Answer 15

Conduct heat and electricity

Question 16

Which elements are locted betweeen the metals and the non-metals?

Answer 16

The metalloids

Question 17

A single horizontal portion of the periodic table is called what?

Answer 17

Period.

Question 18

What is not true about metal?

Answer 18

They don’t conduct heat.