These are aluminum atoms. An atom is the smallest particle of an element that has the properties of that element. Some properties of aluminum are: shiny, silver colored, fragile, and thin. Each element has its own type of properties. Chemists use symbols to represent elements.
1 A person who has passed away and who is no longer alive is someone who would be described as dead.  When your career has faltered, you've been fired and have no hope of gaining your position back, this is an example of a time when your career is dead.
Full Definition of MARTYR. 1. : a person who voluntarily suffers death as the penalty of witnessing to and refusing to renounce a religion. 2. : a person who sacrifices something of great value and especially life itself for the sake of principle.3. â marÂ·tyrÂ·iÂ·zaÂ·tion \Ëmaer-ËmÃ¤r-tÉ-rÉ-ËzÄ\ shÉn. noun a person who is killed or who suffers greatly for a religion, cause, etc. : a person who pretends to suffer or who exaggerates suffering in order to get praise or sympathy.