Lesson 3- periodic tableee

Question 1

what is the periodic table?

Answer 1

elements but in rows that increase by atomic number

Question 2

What are the horizontal rows of the periodic table called?

Answer 2

Periods.

Question 3

What are the vertical columns in the periodic table called?

Answer 3

families or groups

Question 4

what does a group number communicate in the outer level?

Answer 4

the number of electrons.

Question 5

what are the 5 groups/families of the periodic table?

Answer 5

1. Alkali Metals
2. Alkaline Earth metals
3. Transition Metals
4. Halogens
5. Noble Gases

Question 6

Alkali metals

Answer 6

VERY reactive metals, always combined with something else in nature (like in salt)
-soft enough to cut with a butter knife

Question 7

Alkaline Earth Metals

Answer 7

reactive metal
- combined with nonmetals in nature
- important minerals/nutrients

Question 8

Transition Metal

Answer 8

LESS reactive harder metals
(eg. jewelry and construction metals)

Question 9

Halogens

Answer 9

VERY reactive nonmetals
-combined with alkali metals to form salts

Question 10

Noble Gases

Answer 10

VERY unreactive
- full outer shell (valence)

Question 11

metals

Answer 11

-most of the elements
-good conductors or electricity and heat
-solid at room temperature typically

Question 12

Non metals

Answer 12

• 17 elements with variations in color, state, and room temperature

Question 13

Metalloids

Answer 13

mix of metals and nonmetals with low conductivity.