Which of the following metals react most vigorously with water?

Which one of the following is a halogen?

Which of the Group 7 elements is a liquid at room temperature and atmospheric pressure?

Which element has the SMALLEST atomic radii?

Here is the electronic configuration of four elements. Which element will be a METAL?

Here is the electronic configuration of four elements. Which element will be a NOBLE GAS?

He proposed the Law of Octaves.

He proposed the Law of Triads.

He is widely credited with creating the first version of the periodic table.

He is widely credited with creating the modern version of the periodic table.

Elements in Group 0 of the periodic table.

Elements in Group 0 of the periodic table are called:

Elements between Group II and Group III of the periodic table are called:

Which set of three elements identified by their atomic numbers all belong to the same period of the Periodic table?

Which set of three elements identified by their atomic numbers all belong to the same group of the Periodic table?

The atoms of element X contain 8 protons. Which of the following elements will have similar chemistry to element X?

The electronic configuration of an atom of element Z is 2,8,8,2. Element Z would be expected to

I. Be in Group II of the periodic table

II. Be more reactive than magnesium

III. React with hydrochloric acid.

The atoms of element X contain five electrons. Which of the following elements is in the same group as element X?

The following statements about the periodic table are correct EXCEPT

Which of the following metals reacts most vigorously with dilute hydrochloric acid?

How many of the Group VII elements are liquid at room temperature and atmospheric pressure?

Which one of the following metals is NOT an element?

Elements in the modern periodic table are arranged on the basis of

I. Their increasing relative atomic mass

II. Their chemical properties

III. The electronic configuration of their atoms.

An element with an atomic number of 7 would be expected to be

Which of the pairs of the following elements exist as gas?

Which of the following elements burns with a bright white flame?

Which of the following elements burns with a brick red flame?

Which of the following elements burns with an apple green flame?

Which of the following elements burns with a lilac flame?

Which element has the LARGEST atomic radii?

When metal atoms form ions they:

When non-metal atoms form ions they:

Isotopes have the same

Which isotope is used to determine the age of plant and animal remains?

Non-metal ions are called ______ whereas metal ions are called ______.

Element X has 3 valence electrons and 4 electron shells. Select the correct position for element X

State the appropriate group and period for element P

P: 2, 7

The element with the electronic configuration (2, 7) is

According to the following order of ATOMIC NUMBER, (2, 3, 4, 5, and 6) select the correct sequence

Which of the following techniques or processes may be used to separate a mixture of plant pigments into individual components?

Which of the following apparatus/ instruments is most suitable for obtaining both cooking oil and water from a mixture of the two?

A separating funnel can be used to separate a mixture of

A substance X, with boiling point of 58°C, is miscible with another liquid Y, of boiling point 94°C. A mixture of these two liquids can BEST be separated into its components by

Which of the following statements illustrates osmosis?

Which of the following processes provides evidence in support of the particulate nature of matter?

In descending Group VII of the periodic table, which TWO of the following trends occur?  

I. The density of the elements increases.    

II. The relative atomic mass of the elements decreases.  

III. The melting point of the elements increases.  

IV. The reactivity of the elements increases.

Radioactive isotopes are NOT normally used in the

Which of the following elements has SEVEN in its outer shell?

Which of the following processes provide evidence of the particulate nature of matter?    

I. Diffusion.

 II. Filtration.

III. Osmosis.

The atomic number of an element is defined as the number of:

The element that is used to determine the relative atomic mass of other elements is

In which of the following processes, radioactive isotopes are NOT used?

An atom with atomic structure as shown below, contains

When X and Y are stirred together in a beaker and the mixture filtered, X and Y are both present in the filtrate. Which of the following could describe the mixture formed by X and Y?      

I. Solution.    

II. Colloid.      

III. Suspension.

The atoms shown below are isotopes because they

Which of the following operations results in sublimation?

Which of the following separation technique is NOT used during the extraction of the sucrose from sugarcane?

Which set of the elements has atoms with TWO electrons in their outer shell?

Atoms of isotopes X and Y, have:.      

I. The same number of electrons.

II. The same number of protons.

III. Different number of neutrons.