Atomic Structure

Which symbol is correct for the element magnesium?

• mg

• M

• Mg

• mn

Which particle (s) are found in the nucleus of an atom?

• protons

• protons and neutrons

• neutrons and electrons

• neutrons

Which particle has no charge?

• proton

• electron

• neutron

• nucleus

How many protons does this element have?

• 15.99

• 8

• 7

• 24

What is the electron configuration for this atom?

• 2,4,2

• 2,2,4

• 4,4

• 2,6

The ion Mg2+ has lost ....

• protons

• electrons

• neutrons

• protons and neutrons

Fluorine has 9 protons and 10 neutrons. What is it's electron arrangement?

• 4,6

• 2,8,1

• 2,7

• 4,4,2

If aluminium has an electron arrangement of 2,8,3, what kind of ion will it form?

• 2+

• 3+

• 5-

• 3-

What is the charge of an electron?

• Positive

• Negative

• Neutral

• Variable

What is the maximum number of electrons that can occupy the second shell of an atom?

• 2

• 4

• 8

• 10