WorksheetsG-9-10-Valencies - 1
Total questions: 30
Worksheet time: 16mins
What do metals conduct?
heat
electricity
both
If an electron is removed, an ion becomes
An atom
Positive
Negative
Neutral
If an atom gains an electron, it becomes................... ion
Positive
Stable
Atomic
Negative
Carbon
CA
C
Ca
Cn
Zinc
Z
Zi
ZN
Zn
Sulfur
Sf
Su
Sr
S
Neon
N
No
Ne
Nn
Calcium
Cl
Ca
C
Cm
Copper
CU
Cp
Cu
Cr
Helium
He
Hl
HE
Hm
Hydrogen
Hy
H
Hr
Hn
Gold
Go
Gl
AU
Au
Pb
Gold
Lead
peanut butter
Paribium
Iron
Ir
In
Fe
FE
Nickel
Ni
N
Nl
Nc
Mercury
Me
Hg
HG
ME
Iodine
Ie
I
Id
Io
Potassium
P
K
Pt
k
Aluminum
A
Al
Am
Au
The pure substance which is made up of same type of atoms is called?
Molecule
Compound
Element
Mixture
Symbol of sodium is
Na
S
Si
Sn
Symbol of Chlorine is
C
Cl
C u
Ca
What is the charge of Iron(III)
+3
+1
+2
+4
What is the charge of Fe (II)
-1
+1
+2
-2
Copper(II) has an ionic charge of
+1
+2
Neutral
-3
What is ionic charge on Borate?
Bo33-
BO33-
BO23-
BO3-
____________ is the combining capacity of an element.
Valence electrons
Valency
Valence shell
Electronic configuration
A ____________ is an atom or groups of atoms of same or different elements carrying positive or negative charge (ion) which exist in the compounds.
Radicel
Radikal
Redical
Radical
