Periodic Table

Question 1

what did bours say

Answer 1

Because they are specific orbitals

Question 2

Periodic table

Answer 2

This is Stone for organizing the elements into columns and rose so the elements with similar properties are in the same column

Question 3

Modern periodic table

Answer 3

-arranges elements according to increasing atomic number (number of protons)

Question 4

Natural elements

Answer 4

-atomic number 1 to 92
-exist naturally on earth

Question 5

Synthetic elements

Answer 5

-have been by scientists
-atomic number greater than 93 to 116

Question 6

Nonmetal

Answer 6

No shiny
Not malleable
Not ductile
Dull
Brittle
Poor conductor (of heat and electricity)
Some gases,some solids (except bromine,which is a liquid)

Question 7

Metalloid

Answer 7

Shares some properties with metals and properties with nonmetals

Possibly shiny
Soild
Brittle
Silicon and germanium are semi-conductors

Question 8

Alkali metals

Answer 8

Li,na,k,Rb,Cs,Fr
-shiny,slivers metals
-elements violently reactive: most reactive of all metals are- sodium is usually stored in kerosene to prevent it from reacting with water vapour in the air

Question 9

Alkali earth metals

Answer 9

Be,mg,ca,Sr,Ba,Ra
-shiny,slivers metals
-very reactive