Question

structure of modern periodic table​

Answer 1

Answer:

The periodic table is organized like a big grid. Each element is placed in a specific location because of its atomic structure. As with any grid, the periodic table has rows (left to right) and columns (up and down). Each row and column has specific characteristics.

Answer 2

Periodic table

Group 1 2 3   4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Hydrogen

and

alkali metals Alkaline earth metals              Pnicto­gens Chal­co­gens Halo­gens Noble gases

Period

1

Hydro­gen

1

H

​1.008

He­lium

2

He

​4.0026

2  

Lith­ium

3

Li

​6.94

Beryl­lium

4

Be

​9.0122

Boron

5

B

​10.81

Carbon

6

C

​12.011

Nitro­gen

7

N

​14.007

Oxy­gen

8

O

​15.999

Fluor­ine

9

F

​18.998

Neon

10

Ne

​20.180

3  

So­dium

11

Na

​22.990

Magne­sium

12

Mg

​24.305

Alumin­ium

13

Al

​26.982

Sili­con

14

Si

​28.085

Phos­phorus

15

P

​30.974

Sulfur

16

S

​32.06

Chlor­ine

17

Cl

​35.45

Argon

18

Ar

​39.95

4  

Potas­sium

19

K

​39.098

Cal­cium

20

Ca

​40.078

Scan­dium

21

Sc

​44.956

Tita­nium

22

Ti

​47.867

Vana­dium

23

V

​50.942

Chrom­ium

24

Cr

​51.996

Manga­nese

25

Mn

​54.938

Iron

26

Fe

​55.845

Cobalt

27

Co

​58.933

Nickel

28

Ni

​58.693

Copper

29

Cu

​63.546

Zinc

30

Zn

​65.38

Gallium

31

Ga

​69.723

Germa­nium

32

Ge

​72.630

Arsenic

33

As

​74.922

Sele­nium

34

Se

​78.971

Bromine

35

Br

​79.904

Kryp­ton

36

Kr

​83.798

5  

Rubid­ium

37

Rb

​85.468

Stront­ium

38

Sr

​87.62

Yttrium

39

Y

​88.906

Zirco­nium

40

Zr

​91.224

Nio­bium

41

Nb

​92.906

Molyb­denum

42

Mo

​95.95

Tech­netium

43

Tc

​[97]

Ruthe­nium

44

Ru

​101.07

Rho­dium

45

Rh

​102.91

Pallad­ium

46

Pd

​106.42

Silver

47

Ag

​107.87

Cad­mium

48

Cd

​112.41

Indium

49

In

​114.82

Tin

50

Sn

​118.71

Anti­mony

51

Sb

​121.76

Tellur­ium

52

Te

​127.60

Iodine

53

I

​126.90

Xenon