IONS/ISOTOPES

p, n, e

100

How many protons does phosphorus have?

15

200

True or false? 

The number of neutrons in a sodium atom is 12.

True

300

How many protons and neutrons are there in a sulphur atom?

32

400

How many electrons are there in a Cl^- ion?

18

500

How many protons are there in a Na⁺ ion?

11

ISOTOPES

100

True or false? 

Isotopes of an element have the same number of protons but different number of neutrons.

True

200

The name of an isotope is the name of the element followed by a dash (-) and _____ __________ of the isotope.

atomic mass

300

What is the isotope that has 6 protons and 8 neutrons?

C-14 isotope

400

How many protons, neutrons and electrons does Cl-37 have?

p = 17

e = 17

n = 20

500

Can isotopes be charged, and why?

Yes, they can becomes charged if they gain or lose electrons.

IONS

100

True or false? 

Ions of the same element have different proton numbers.

False.

200

True or false

If an atom loses an electron, it becomes negatively charged. 

False, it becomes positively charged as there are less electrons (-ve charge) than protons (+ve charge).

300

A positive ion is called a ______ and a negative ion is called a _________

Cation, anion

400

Write the ion for Zn which has lost 2 electrons.

Zn²⁺

500

Would sodium be more likely to gain or lose electrons?

Lose electrons