ions and isotopes questions

Anions are...

• Positive
• Negative
• Neutral
• Crying

Can an atom of Hydrogen have 2 protons?

• Yes, because it can be an ion
• No, because protons identify the atom
• Yes, because it can be an isotope
• No, because only neutral atoms exist

An atom becomes _________ when it gains electrons.

• Positive
• Negative
• Neutral
• Invinsible

How many neutrons does this bromine atom have?

• 35

• 45

• 80

Which subatomic particle is used to identify the atom, as it never changes?

• Protons

• Neutrons

• Electrons

What is the atomic mass of barium

• 56

• 82

• 137

• 138

Why are atoms electrically neutral?

• The neutrons balance out any charge.

• There are more neutrons than protons or electrons.

• Protons and electrons cancel each other out because they have opposite charges.

• Neutrons have no charge which makes the who atom neutral.

Cations tend to have:

• High valence

• Positive valence

• Neutral valence

• Negative valence

What do these isotopes of carbon all have in common?

• neutrons & mass number
• atomic number and neutrons
• atomic number and electrons
• protons, atomic number, and mass number

If a sulfur atom has 16 protons, 16 electrons, and 16 neutrons, its atomic mass is:

• 16

• 32

• 48

• 64