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scince

Total questions: 10

Worksheet time: 6mins

Name
Class
Date
1.

atomic mass of iron

a)

55.845 u

b)

58.933195 u

c)

12.0107 u

d)

238.02891 u

2.

proton is charge

a)

+

b)

-

c)

=

3.

core of atom is

a)

nucleus

b)

subatomic

c)

core

4.

how is have proton or neutron

a)

neutron

b)

proton

c)

electrons

5.

atomic number of Cobalt

a)

27

b)

55

c)

124

6.

symbol of Uranium

a)

u

b)

ui

c)

x

7.

find the atomic number of Tungsten

a)

77

b)

74

c)

34

d)

112.45

8.

atom base is

a)

e / p / n

b)

p / n /e

c)

n / p /e

9.

what is atomic mass

a)

sum of neutron or proton

b)

number of electrons

c)

charges

10.

geve me answar how or you

a)

pagal

b)

intaligent

c)

pro

d)

hacker