When radium (A = 88) emits an alpha particle, the resulting ...

[captainjonesify]

When radium (A = 88) emits an alpha particle, the resulting nucleus has atomic number
 
  A) 86.
  B) 88.
  C) 90.
  D) 92.
  E) none of the above

Question 2

The highest tides occur when
 
  A) the Sun and the Moon are on the same side of Earth.
  B) the Sun and the Moon are on opposite sides of Earth.
  C) the Sun, Moon, and Earth form a right-angled triangle with Earth at the 90 vertex.
  D) the Sun, Moon, and Earth form a right-angled triangle with the Moon at the 90 vertex.
  E) the Sun, Moon, and Earth form a right-angled triangle with the Sun at the 90 vertex.

[frankwu0507]

Answer to Question 1

Answer: A

Answer to Question 2

A

[captainjonesify]

TYSM

[irishcancer18]

Gracias!