Atomic structure and Introductory Periodic Table

The horizontal row on the periodic table is called a

• group
• family
• period
• atomic number

These elements can be found where in the periodic table?

• Period 1

• Group I

• Group III

• Group VI

In the modern periodic table elements are arranged by:

• atomic mass
• atomic number
• valence electrons
• mass number

Atom Q has atomic number 27 and a mass number of 59. Which of the following statements is not true of atom Q.

• Q has 27 protons

• Q has 32 neutrons

• Q has 32 electrons

• All options are correct

Particle J has 15 protons, 18 electrons and 16 neutrons. Which of the following is correct?

• J has a mass number 33.

• J has a charge of -3.

• J has a charge of +3.

• J has a mass number of 34

What is the atomic number of this atom?

• 3

• 4

• 6

• 7

What is the mass number of this atom?

• 3

• 4

• 6

• 7

Identify the isotopes.

• X and Y

• V and Y

• W and Z

• Y and Z

Identify the element with the largest atoms.

• X

• Y

• Z

• They are all the same size.

Element Q, R and S are in the same group of the periodic table. Q has the lowest ionisation energy and R has the highest. Select their correct placement in the group.

• A

• B

• C

• D