C4 Atoms,Elements,The Periodic Table Flashcards Preview

Chemistry > C4 Atoms,Elements,The Periodic Table > Flashcards

Flashcards in C4 Atoms,Elements,The Periodic Table Deck (11)
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1

How can data about properties and elements on the periodic table be used?

Wot out trends and make predictions

2

How do you find the relative atomic mass?

No. Of protons + no. Of neutrons

3

How would you find the electron arrangement of potassium?

Proton number= 19
Shell 1 = 2
Shell 2 = 8
Shell 3 = 8
Shell 4 = 1

4

Electrons in different shells have different energy levels. The ones closest to the nucleus has ........ Energy levels.

Lower.

5

What are Altima of elements with 3 electrons on the outer shell?

Metals

6

How many atoms are there on the outer shell of non- metals?

5 or more

7

What are elements with a full outer shell?

Inert gasses

8

What is a group of the periodic table?

A vertical column.

9

What kind of metals are in group 1?

Alkali metals

10

How many electrons are on the outer shell of group 1 elements?

1 electron

11

what is the history of the periodic table?

Dmitri Mendeleev
= groups and periods
Based on RAM

Pother scientists saw patterns but not all the elements fitted within them.