SC17a Group 1

Question 1

what type of metals are group 1?

Answer 1

alkali metals

Question 2

lithium and water reaction?

Answer 2

bubbles fiercely on the surface

Question 3

sodium and water reaction?

Answer 3

melts into a ball and fizzes about the surface

Question 4

potassium and water reaction?

Answer 4

bursts into flame and flies about the surface

Question 5

properties of alkali metals?

Answer 5

~Good conductors of electricity. ​
~Low melting points and boiling points. ​
~React with oxygen. ​
~Soft solids. ​
~Shiny and metallic. ​
~Low density. ​

Question 6

what does alkali + water produce

Answer 6

alkaline solution + hydrogen gas

Question 7

potassium + oxygen →

Answer 7

potassium oxide

Question 8

lithium + water →

Answer 8

lithium hydroxide + hydrogen

Question 9

why is potassium more reactive then lithium?

Answer 9

potassium’s outer electron is further away from the nucleus = less attraction = easier to get rid of it to get a full outer shell.

Question 10

patterns in group 1?

Answer 10

reactivity increases as you go down