Answers>Chemistry>GCSE>Article

An atom of an element has the electronic structure 2,8,8,2. What is its atomic number?

20 2+8+8+2= 20

Answered by Molly F. • Chemistry tutor

3750 Views

See similar Chemistry GCSE tutors

Related Chemistry GCSE answers

All answers ▸

An isotope of Nitrogen has an atomic number of 7 and a mass number of 15. How many protons, neutrons and electrons will each atom have?does

Explain the inertness of noble gases

What is the difference between an atom and an ion? Explain the difference between an Na (sodium) atom and Na+ ion.

How do I work out what the ionic charge is for different elements in the periodic table?

Popular Requests

Maths tutor Chemistry tutor Physics tutor Biology tutor English tutor GCSE tutors A level tutors IB tutors Physics & Maths tutors Chemistry & Maths tutors GCSE Maths tutors

CLICK CEOP

Internet Safety

Payment Security

Cyber

Essentials

MyTutor is part of the IXL family of brands:

IXL

Comprehensive K-12 personalized learning

Rosetta Stone

Immersive learning for 25 languages

Wyzant

Trusted tutors for 300 subjects

Education.com

35,000 worksheets, games, and lesson plans

Vocabulary.com

Adaptive learning for English vocabulary

Emmersion

Fast and accurate language certification

Thesaurus.com

Essential reference for synonyms and antonyms

Dictionary.com

Comprehensive resource for word definitions and usage

SpanishDictionary.com

Spanish-English dictionary, translator, and learning resources

FrenchDictionary.com

French-English dictionary, translator, and learning

Ingles.com

Diccionario ingles-espanol, traductor y sitio de apremdizaje

ABCya

Fun educational games for kids