Help
Contact
For teachers and institutes
Search courses, problems, tests…
A
A
>_
StemPy Lab
Courses ▾
Problems ▾
Practice ▾
Mock Tests
Classes
Groups
Community ▾
A
A
Why do atoms get smaller across a period? | StemPy Lab
Quizzes
/
Why do atoms get smaller across a period?
Chemistry
Medium
High School (9–10)
General
The Periodic Table › Periodic Trends
Created by
StemPy Lab
Why do atoms get smaller across a period?
The electrons get lighter
The charge on the nucleus rises and pulls the same shells in closer
The nucleus gets smaller
The atoms lose shells
Check Answer
Log in to save
Tag someone
⚑ Report
← All Quizzes
← Across period 3, from sodium to chlorine, what happens to the size of the atoms?
Which element of period 3 is the most metallic? →
More on
The Periodic Table › Periodic Trends
Discussion (0)
Log in
to join the discussion.
Loading…
Problems on this topic
On the Pauling scale sodium is 0.9, hydrogen 2.1, carbon 2.5 and chlorine 3.0.
Hard
Sodium oxide, aluminium oxide and sulphur trioxide are each tested with water, with dilute acid and…
Medium
Use the valences of the groups to write three formulas.
Easy
The electron gain enthalpy of chlorine is -349 kJ mol⁻¹ and that of fluorine -328 kJ mol⁻¹.
Hard
All problems on this topic →