periodic table

Question 1

whats an element

Answer 1

pure substances that are made of only 1 type of atom can not be broken down further

Question 2

whats a compound

Answer 2

2 or more elements chemicly combined

Question 3

whats a period

Answer 3

horzantal line in the periodic table

Question 4

whats a group

Answer 4

vertical line in the periodic table

Question 5

why are the alkali metals called alkilai metals

Answer 5

beacuse when put in water the water become alkali( in group 1) also very reactive

Question 6

what are the halogens

Answer 6

(in gorup 7)are the elements that is one electron of a full shell making them very reactive.

Question 7

what are the noble gases

Answer 7

in gorup 8 they have full shells and dont react at all

Question 8

what is some of the characteristics of metal

Answer 8

mallable good conductors of heat and electrcity

Question 9

what is some of the characteristics of non-metal

Answer 9

brittle not good conducter of heat and electrtiy

Question 10

what is some of the characteristics of metaloids

Answer 10

sometime behave as a metal somtime as a non-metal

Question 11

info flip to see I :)
V

Answer 11

mass number number of protons and netrons
atomic number number of protons

Question 12

hoo many pro neu and ele does this ele ment have
13
C
6

Answer 12

ele=6
pro=6
neu=7

Question 13

whats the electric configrartion

Answer 13

2,8,8

Question 14

whof the halogens is most reactive

Answer 14

fluoine

Question 15

whcih of the alaklis is most reactive

Answer 15

francium

Question 16

which of the metal is softer magnesium or potassium(in solid form)

Answer 16

potassium