NPS [Lecture] Ionic Bond

Table salt is a common seasoning used to make food more tasty!

It is made of two atoms in the periodic table, which are sodium and chlorine.

Table Salt

食盐是一种常见的调味品，用来让食物更美味！
它由元素周期表中的两个元素组成，分别是钠和氯。

La sal de mesa es un condimento común que se usa para hacer la comida más sabrosa.
Está compuesta por dos elementos de la tabla periódica, que son el sodio y el cloro.

Table Salt

Multiple Select

SELECT TWO:

Which two atoms make up table salt?

• sodium

• chlorine

• carbon

• magnesium

sodium is a soft metal that can be cut with a butter knife. It is also very reactive that it explodes when exposed to water!

Sodium metal

钠是一种软金属，可以用黄油刀切开。它也非常活泼，接触到水时会发生爆炸！

El sodio es un metal blando que se puede cortar con un cuchillo de mantequilla. ¡También es muy reactivo y explota al entrar en contacto con agua!

Sodium metal

Multiple Select

SELECT TWO:

What are the characteristics of sodium metal?

• liquid

• hard

• reactive

• soft

Chlorine is a yellow-green gas. It is extremely toxic and reactive!

Chlorine gas

氯是一种黄绿色的气体。它极其有毒且具有很高的活性！

El cloro es un gas amarillo verdoso. ¡Es extremadamente tóxico y reactivo!

Chlorine gas

Drag and Drop

Fill in the blank:



Chlorine is a yellow-green ​

Placeholder

. It is extremely ​

Placeholder

and ​

Placeholder

!

Drag these tiles and drop them in the correct blank above

gas

toxic

reactive

liquid

smelly

bright

If table salt is made of two dangerous atoms, then why is it safe for us to eat?

如果食盐是由两种危险的原子组成的，那为什么我们食用它是安全的呢？

Si la sal de mesa está compuesta por dos átomos peligrosos, ¿por qué es segura para nosotros comerla?

The answer is found in the valence electrons of each atom!

答案在于每个原子的价电子！

¡La respuesta se encuentra en los electrones de valencia de cada átomo!

Valence electrons are found in the outermost shell of the atom.

价电子位于原子最外层的电子壳层中。

Los electrones de valencia se encuentran en la capa más externa del átomo.

Drag and Drop

Valence electrons are the electrons located on the very ​

Placeholder

of the atom.

Drag these tiles and drop them in the correct blank above

middle

inside

outside

Valence electrons play an important role in determining the characteristics of an atom.

价电子在决定原子特性方面起着重要作用。

Los electrones de valencia desempeñan un papel importante en la determinación de las características de un átomo.

Many atoms want to have 8 valence electrons to be stable.

许多原子希望拥有8个价电子以保持稳定。

Muchos átomos quieren tener 8 electrones de valencia para ser estables.

Drag and Drop

When atoms have 8 valence electrons, it causes them to be ​

Placeholder

Drag these tiles and drop them in the correct blank above

unstable

stable.

heavy

explosive

To achieve 8 valence electrons, atoms either donate or receive electrons!

为了获得8个价电子，原子要么捐赠电子，要么接收电子！

Para lograr 8 electrones de valencia, los átomos ya sea donan o reciben electrones.

Multiple Choice

How many valence electrons does sodium have?

• 1

• 7

• 2

• 8

Multiple Choice

What is sodium doing to have 8 valence electrons?

• donates 1 valence electron to chlorine

• steals 1 valence electron from chlorine

Multiple Choice

How many valence electrons does sodium have after donating 1 valence electron?

• 10

• 1

• 8

• 7

Multiple Choice

How many valence electrons does chlorine have?

• 1

• 7

• 2

• 8

Multiple Choice

What is chlorine doing to have 8 valence electrons?

• receives 1 valence electron from sodium

• receive 7 valence electrons from sodium

• gives 7 valence electrons to sodium

• donates 1 valence electron to sodium

Multiple Choice

How many valence electrons does chlorine have after donating 1 valence electron?

• 8

• 1

• 7

• 10

After transferring electron between two atoms, they both have 8 valence electrons to become stable!

在两个原子之间转移电子后，它们都拥有8个价电子，从而变得稳定！

¡Después de transferir electrones entre dos átomos, ambos tienen 8 electrones de valencia y se vuelven estables!

When atoms are stable, it does not react, which allows us to eat salt safely!

当原子稳定时，它不会发生反应，这使我们可以安全地食用盐！

Cuando los átomos están estables, no reaccionan, ¡lo que nos permite comer sal de manera segura!

Then sodium and chlorine are held together by a bond called 'ionic bond'!

那么钠和氯通过一种叫做“离子键”的键连接在一起！

¡Entonces, el sodio y el cloro están unidos por un enlace llamado "enlace iónico"!

Multiple Choice

What is the name of the bond that holds sodium and chlorine together?

• ionic bond

• covalent bond

• metallic bond

• hydrogen bond

It forms between metals and nonmetals

It is a very strong bond that is hard to break!

It does not melt easily!

... But it easily dissolves in water!

​Characteristics of Ionic Bond

它形成于金属和非金属之间。

Se forma entre metales y no metales.

它是一个非常强的键，难以打破！

¡Es un enlace muy fuerte que es difícil de romper!

它不容易融化！

¡No se derrite fácilmente!

... 但它很容易溶解在水中！

... ¡Pero se disuelve fácilmente en agua!

离子键的特点 Características del enlace iónico

Multiple Choice

Ionic bond forms between...

• Metals and nonmetals

• Two metals

• Two nonmetals

Multiple Choice

Ionic bond is very ____.

• long

• weak

• short

• strong

Drag and Drop

Ionic bond does NOT ​

Placeholder

easily, but ​

Placeholder

well in water.

Drag these tiles and drop them in the correct blank above

melt

dissolves

freeze

Categorize

Options (6)

K

Ca

Mg

C

N

Br

Categorize the following elements as either a metal or a nonmetal.

Metal

Nonmetal

Categorize

Options (4)

NaCl

CO

LiF

H2O

Examine the following compounds and determine whether each one is held together by an ionic bond or not.

Ionic Bond

NOT ionic bond