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Chemestry Flashcards | StudBud

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Chemestry

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#Science #Chemestry #Year9 #Valency #Test #Periodic Table

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Questions 10

Answers

1
Which bonding has a sea of electrons?
Metallic Bonding
Ionic Bonding
Electrowaveic Bondimg
Covalent bonding
2
Which scientist developed an early periodic table?
Claudia Jaukin
Dmitri Mendeleev
Kim kardashian
JJ Thomson
3
Is Potassium in group 1
True
False
4
Is water an example of covalent bond ?
True
False
5
The elements in the present periodic table are arranged according to their:
mass number
atomic number
atomic masses
atomic weight
6
What is the symbol for Gold?
Or
Ar
Ua
Au
7
A horizontal row in the periodic table is called a:
branch
group
shells
period
8
Which of these properties does a typical non-metal element have?
It has a high density
It is a good conductor of heat
Correct answer selected
It is a poor conductor of electricity
9
What is a covalent bond?
A boond that is invisible to the eye but really scientific when watched at
A bond formed when two atoms share a pair of electrons
A bond formed between oppositely charged ions
A bond formed by delocalised electrons
10
Which of these is a halogen ?
Sodium
Neon
Chlorine
Potassium