Chemical Symbols of Elements

Q.

What is Valency and atomic mass of all elements in whole number?

Give only 1 valency and atomic mass for 1 elements.

Q.

Which sentence is correctly capitalized and punctuated?

1. Yes, Ana. You can do this

2. Yes Ana. You can do this

3. yes Ana. You can. do this

Q.

What is the superlative form of Kind?

Q. Why symbol of iron is Fe

Q.

What is a symbol of the element Gold?

1. Au

2. Sb

3. Hg

4. Sn

Q.

What is the symbol of Gold?

1. Au

2. Sb

3. Hg

4. Sn

Q. The atomic number (Z) represents the number of _____ present in the nucleus of an atom.

1. electrons
2. protons
3. neutrons
4. Sum of B & C

Q.

Which one of these is the correct symbol of element Zinc?

1. Zn

2. ZN

3. Zc

4. Za

Q.

The number of unit positive charge carried by the nucleus of an atom is called the atomic number of that atom (element).

1. True
2. False

Q.

An atom has mass number A and atomic number Z.

How many electrons are revolving around the nucleus?

Q.

Write the following in mathematical form using signs and symbols:

$3$ less than quotient of $x$ by $y$.

Q.

Which one of the following is the modern symbol of Gold?

1. Gl

2. Au

3. Si

4. Go

Q.

Fill in the blank with preposition.

Did you watch the football _ T.V last night?

Q.

Write the formulae for the following.

Calcium chloride

Q. Match the elements with their correct symbols.

1. Sodium
2. Na
3. Cl
4. Chlorine
5. K
6. Potassium

Q. Identify the element given below.

1. Hydrogen
2. Helium
3. Lithium
4. Carbon

Q.

Natrium is the latin name of ____________.

1. Lead

2. Nitrogen

3. Sodium

4. Neon

Q.

The atomic number of an atom having 10 electrons is:

1. 9

2. 10

3. 11

4. cannot be predicted

Q.

What is the symbol of Gold?

1. Au

2. G

3. Hg

4. Gd

Q. The number of protons in a lithium atom are .

1. 3
2. 2
3. 4
4. 8

Q.

What is the symbol of the element Tungsten?

1. J

2. Tu

3. W

4. Tg

Q. Which among the following is the chemical symbol for iron?

1. K
2. Fe
3. Na
4. Zn

Q. The atomic structure of an element is deduced from its atomic number and mass number. Give reason

Q. Identify the correct chemical symbols for the corresponding elements.

1. Iron - Ir
2. Sodium - Na
3. Iron - Fe
4. Copper - Cu
5. Potassium - K
6. Aluminium - A
7. Copper - Co
8. Cobalt - Co
9. Hydrogen - Hy

Q.

Which of the following exists as inert gas at room temperature?

1. Bromine

2. Iodine

3. Nitrogen

4. Phosphorus

Q. Chose the correct pairs of elements and their chemical symbols.

1. Boron
2. Beryllium
3. Copper
4. Cobalt
5. Co
6. B
7. Be
8. Cu

Q. Match the following elements with their respective symbolic representations.

1. Au
2. Pb
3. Ag
4. P

Q. A chemical equation means :

1. representing a chemical change with help of symbols and formulae
2. showing the kind of elements present in a mixture
3. representing chemical and physical properties of reactant molecules
4. acquiring instructions for the preparation of a compound