Question

please solve it for me !!!!​

Answer 1

Answer:

Atom Protons Electrons Neutrons

X 4 4 5

Y 6 6 6

Z 9 9 10

Name of Elements

X=Beryllium

Z=Carbon

Y=Fluorine

Atomic Number

• Beryllium=4

• Carbon=6

• Fluorine=9

Mass of Number

• Beryllium=9

• Carbon=12

• Fluorine=18

Valency Number

• Beryllium=2

• Carbon=4

• Fluorine=1