RoseMarie Gallagher and Paul Ingram Solutions for Chapter: Atoms and Elements, Exercise 7: Checkup on Chapter 3

Author:RoseMarie Gallagher & Paul Ingram

RoseMarie Gallagher Chemistry Solutions for Exercise - RoseMarie Gallagher and Paul Ingram Solutions for Chapter: Atoms and Elements, Exercise 7: Checkup on Chapter 3

Attempt the free practice questions on Chapter 3: Atoms and Elements, Exercise 7: Checkup on Chapter 3 with hints and solutions to strengthen your understanding. Complete Chemistry for Cambridge IGCSE® Second Edition solutions are prepared by Experienced Embibe Experts.

Questions from RoseMarie Gallagher and Paul Ingram Solutions for Chapter: Atoms and Elements, Exercise 7: Checkup on Chapter 3 with Hints & Solutions

EASY
Upper Secondary: IGCSE
IMPORTANT

Bromine atom have 36 neutrons. How can the bromine atom be represented in the form XZA?

MEDIUM
Upper Secondary: IGCSE
IMPORTANT

For each of the six elements aluminium Al, boron B, nitrogen N, oxygen O, phosphorous P and sulphur S, identify the proton number.

MEDIUM
Upper Secondary: IGCSE
IMPORTANT

For each of the six elements aluminium Al, boron B, nitrogen N, oxygen O, phosphorous P and sulphur S, identify the number of electrons in the given elements.

MEDIUM
Upper Secondary: IGCSE
IMPORTANT

For each of the six elements aluminium Al, boron B, nitrogen N, oxygen O, phosphorous P and sulphur S, write the electronic configuration.

MEDIUM
Upper Secondary: IGCSE
IMPORTANT

For each of the six elements aluminium Al, boron B, nitrogen N, oxygen O, phosphorous P and sulphur S, write the number of outer electrons in its atom.

EASY
Upper Secondary: IGCSE
IMPORTANT

The outer electrons are also called the _____ electrons

MEDIUM
Upper Secondary: IGCSE
IMPORTANT

From the six elements aluminium Al, boron B, nitrogen N, oxygen O, phosphorous P and sulphur S, which elements would you expect to have similar properties and why?

MEDIUM
Upper Secondary: IGCSE
IMPORTANT

The relative atomic mass of sodium is 23.0 and that of magnesium is 24.3. Which of the two elements may exist naturally as single isotope? Explain your answer.