Atomic structure

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Question 35

Medium

All elements are made of atoms. Atoms are made of subatomic particles.

Complete the following statements about the atomic structure of lithium shown in the diagram:

Diagram of a lithium atom showing a central nucleus with a line pointing to it, labeled 'Nucleus containing...'. Two outer concentric rings represent electron shells containing a total of three crosses representing electrons. An arrow points from a blank label line to one of the crosses on the outer shell.

The subatomic particle orbiting the nucleus is an ___________.
The nucleus contains ___________ and ___________.

[2]

Atoms have no overall charge. Explain why, using ideas about subatomic particles.

[2]

Look at the information about two isotopes of lithium:

$36Liand37Li^{6}_{3}\text{Li} \quad \text{and} \quad ^{7}_{3}\text{Li}$

Explain why these are called isotopes.

[2]

Atomic structure

Question 35

Atomic structure Questions

Atomic structure

Question 35

Atomic structure Questions