Elements Symbols

Q. State the rules that are followed while deriving the chemical symbols of various elements.

Q. What is the scientific name of (Hg12).

Q. An oxide of iron contains 72.41% iron what is the empirical formula of the compound

Q. write the symbols atomic number mass number and valency of any five element

Q. Two metalic oxides contain 27.6% and 30% o2 respectively.If the formula of the first oxide is X3O4, what will be the formula of 2nd oxide?

Q. The atomic symbol of copper is:

1. Cr
2. C
3. Cu
4. Cl

Q.

is aluminium a trivalent compound?

Q. Asample arginally contained 10^​20 radioactive atoms, which emit alpha particles.The ratio of alpha particles emitted in third year to thatemitted during second year is 0.3.how many alpha particles are emitted in first year?

Q.

What is the latin name of potassium?

1. kalium

2. katrium

3. kurose

4. kather

Q.

Natrium is the latin name of ____________.

1. Nitrogen

2. Neon

3. Lead

4. Sodium

Q. W is the symbol for ______.

1. silver
2. gold
3. tungsten
4. aluminium

Q.

Which of the following is the chemical symbol for iron?

1. Cu

2. Fe

3. Zn

4. Na

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

1. $\text{K}$
2. $\text{Fe}$
3. $\text{Zn}$
4. $\text{Na}$

Q.

Natrium is the latin name of which element?

1. sodium

2. iron

3. sulphur

4. carbon

Q. Which of the following is correct regarding chemical symbol?

1. It represents one atom of an element.
2. It determines how the reactants react with compounds.
3. It determines how fast the reaction will occur.
4. It represents the electronic configuration of an element.

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

1. $\text{K}$
2. $\text{Na}$
3. $\text{Fe}$
4. $\text{Zn}$

Q. Which of the following elements has its symbol given in the correct format?

1. Aluminium - Al
2. Zinc - ZN
3. Fluorine - f
4. Boron - B